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->'''''Truth:''' Noun. That which most easily appeals to the fears, hopes, and prejudices of the hearer; in essence, a lie.''
->'''''Lie:''' Noun. That which causes its utterer to be reviled; in essence, the truth.''
->'''''Deceit:''' Noun. Example: A dog rolls on the carcass of a dead possum in order to deceive other animals regarding his identity as a dog (whereas) a man lolls in the scents of church in order to deceive himself regarding his identity as a thief, an adulterer, and a liar (the difference is that the dog does not first have to endure being bored by the possum).''
-->-- '''Thorax''', ''ComicStrip/NineChickweedLane''

Truth, lies, and deception. If only it were easier to tell them apart. Listed are multiple tropes that fall into one of the three categories. And TheShadesOfFact offers insight into their fictional equivalents.

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!!Tropes of Truth
First, recognize honest intent, whether expressed as the plain truth or a technical falsehood.\\
See also ATrustingIndex and the InformationDesk.

[[index]]
* AwfulTruth: Something is true, but the truth is so bad that people keep it secret out of fear that other people will go mad.
* BasedOnATrueStory: A work which is, or claims to be, based upon something which really happened.
* BewareTheHonestOnes: Shifty characters distrust an honest one.
* BluntYes: Someone says, "yes" in a blunt tone as a response to a yes-or-no question.
* BrutalHonesty: You'd expect a character to lie, but they just tell the truth.
* CannotTellALie: Someone is literally unable to lie.
* CassandraTruth: Someone tells the truth, but nobody believes them.
* ContagiousCassandraTruth: Somebody cannot get anybody to believe something they know is true, but they manage to convince one, but nobody else.
* DeceptionNoncompliance: Somebody has to deceive, but they deliberately mess it up.
* ADogAteMyHomework: A student doesn't bring their homework and claims that a dog ate it, which is either a lie or a Cassandra Truth.
* DreamingTheTruth: Somebody has a dream that makes them realise the truth.
* FalseReassurance: Someone tells the absolute truth, but makes it seem like they mean something else.
* HelpfulHallucination: A hallucinated person tells the truth and helps an actual character.
* HeroicVow: A hero makes a promise they ''will not break''.
* HonestyIsTheBestPolicy: Somebody tells the truth, because they feel they do not need to lie.
* IGaveMyWord: Dialogue which basically means "I promised to do or not do something, you can't make me do otherwise", which often turns out to be irrational.
* InVinoVeritas: Telling the truth while drunk.
* InventedInvalid: Someone lies about visiting a sick relative as an excuse to escape their duties.
* ItWasHereISwear: Someone finds something, goes to show somebody else, but by the time they come to see, it's gone.
* LieDetector: Something which can tell whether or not somebody is lying.
* LiteralMetaphor: The simple truth, mistaken for a metaphor. Often a part of the ProphecyTwist.
* NewEraSpeech: A villain who wants to take over does a speech that is true, but is ambiguous enough to sound like they want to do something good when really they want to do something bad.
* NoManOfWomanBorn: Some sort of prophecy or something says that something cannot happen until something else, which sounds impossible but somehow isn't, does.
* NoMoreLies: A lie that was useful no longer is.
* NotEvenBotheringWithAnExcuse: Somebody doesn't want to help a character but doesn't make an excuse.
* ProphecyTwist: A prophecy comes true, but not in the expected way.
* RecordedSplicedConversation: Trying to pretend that a recording of another person is the actual person speaking.
* SoCrazyItMustBeTrue: Believing a true, but really weird-sounding, story.
* TruthInTelevision: A trope which happens in real life.
* TruthSerums: A drug which makes the taker be honest.
* TruthTellingSession: Many truths being confessed during a crowd argument.
* VillainsNeverLie: A villain tells the truth in a manipulative way.
* WillNotTellALie: Someone who technically ''can'' lie, but chooses not to.

!!Tropes of Deception
Second, learn the myriad shades of deception, purely for self-defense, of course.\\
See also EspionageTropes and the InfauxmationDesk.

* BluffingTheAdvanceScout: Aliens want to do something bad to Earth, but the humans trick the aliens' advance scouts into thinking all humans are too nasty to deal with.
* BluffingTheAuthorities: An authority figure thinks someone did something suspicious, but the suspected character comes up with an innocent explanation.
* BluffTheEavesdropper: Somebody discovers they are being watched and starts acting to trick the watcher.
* BluffTheImpostor: Tricking an impostor into exposing themselves by making an obvious mistake.
* BluffingTheMurderer: Somebody is ''pretty sure'' who dunnit, but doesn't know for sure so tries to trick the suspect into confessing.
* CassandraGambit: {{Invok|edTrope}}ing a CassandraTruth to hide something.
* ConfrontingYourImposter: An impersonator is exposed by the person they're impersonating.
* ConsummateLiar: "Looks are only skin-deep," "The Earth is doomed," "No one who has drunk my tonic has ever died" -- all carefully selected truths, intended to deceive, the hallmark of {{advertis|ingTropes}}ers and politicians. Expect anyone unable to lie whether due to magic, AppliedPhlebotinum, or just being a ManipulativeBastard type, to be good at this.
* TheCoronerDothProtestTooMuch: When someone in authority claims a suspicious death is due to an accident, suicide, or natural causes.
* CoverIdentityAnomaly: Missing some basic piece of information about someone you're pretending to be, often forcing you to make up something on the spot.
* CrocodileTears: Pretending to cry to gain other people's sympathy.
* DeadPersonImpersonation: Taking the identity of someone deceased.
* DeliberatelyCuteChild: Using a cute façade to get what one wants.
* DidNotDieThatWay: A character finds out they have been lied to about a loved one's death.
* EmbarrassingCoverUp: Where the cover story goes into territory that makes the questioner regret asking.
* FakePeriodExcuse: Pretending to menstruate.
* FakePregnancy: A character pretends to be pregnant.
* FakeRelationship: Two characters pretend to be in a romantic relationship.
* FictionAsCoverup: Hiding the truth in plain sight by calling it fictional.
* ForgedMessage: Writing a message but making it look like someone else wrote it.
* {{Gaslighting}}: Using deceit to intentionally convince someone that he is insane.
* GasLeakCoverup: A simple, dull, believable excuse for something that is none of those.
* HalfTruth: A statement that is technically true, but extremely misleading if you don't have all the information.
* {{Hypocrite}}: Somebody who does things they say they don't like doing.
* IdentityImpersonator: A ruse to protect a character's Secret Identity by showing both character's identities in the same place together at the same time.
* IgnoranceIsBliss: A character or characters are told that what they are doing is something completely harmless or beneficial when it's actually dangerous or evil.
* INeverSaidItWasPoison: Tricking a suspect into revealing something only they would know.
* InfractionDistraction: When someone confesses to or commits a small crime in order to cover for a bigger one.
* ISurrenderSuckers: A character pretends to surrender but attacks once the opponent lowers his guard.
* LiarsParadox: A stock technique where a paradox is formed from statements where truth and lie simultaneously occur.
* ManipulativeBastard: The mastermind of deception.
* ManipulativeEditing: Editing a video out of context to make it look like something else.
* MinorWithFakeID: An underage character uses a forged identity document to buy alcohol or something they're otherwise too young to access.
* MoveAlongNothingToSeeHere: A StockPhrase for authority figures wanting to prevent people from seeing something.
* MultipleIdentityIDs: When someone has several fake [=IDs=] for several fake identities.
* MysteriousBacker: The characters are only being told as much as they need to know.
* [[ILied Outright Lie]]: 'I am trustworthy', 'The Earth is mine to sell' -- both are falsehoods knowingly spoken with intent to deceive. This is the trademark of the ConMan and the [[ZanyScheme schemer]], resorted to by anyone covering up a BigSecret. However subtle they may be, PullTheThread and they collapse (which is why the liar often takes RefugeInAudacity, to keep someone from pulling the thread).
* ObfuscatingDisability: Faking a disability to mislead onlookers or throw off suspicion.
* ObfuscatingInsanity: Likewise a character could fake insanity...
* ObfuscatingStupidity: Or a lack of intelligence.
* OfCorpseHesAlive: Pretending a corpse is a living person.
* PlayingSick: Pretending to be ill to avoid responsibilities or consequences.
* PropagandaHero: A hero either embellished or made up out of whole cloth for propaganda purposes
* PropagandaMachine: A program or agency that exists to promulgate an official (and often misleading) version of the truth.
* PropagandaPiece: Publications geared to influence the public first and foremost, with journalistic integrity as an afterthought or completely absent.
* RecordedSplicedConversation: Manipulating a recording to make a target think they're speaking to a real person.
* ReversePsychology: Getting someone to do something by telling them to do the opposite.
* SarcasticConfession: A truth that will not be believed. Often used to support the {{masquerade}}, this both deflects attention from the truth now and makes one less willing to accept the truth later.
* ScoobyDooHoax: Using supernatural myths and UrbanLegends to scare someone for whatever reason.
* SeamlessSpontaneousLie: A quick, incredibly detailed and not easily disproved lie.
* SocialEngineering: Convincing someone that you're someone else, or convincing someone to do something they don't want to do.
* StagingTheEavesdrop: Intentionally saying something loudly with the explicit intent of getting someone to eavesdrop on it.
* SureLetsGoWithThat: Alice confronts Bob, who is obviously hiding something, and she concludes something wildly different than the secret Bob is actually sitting on, but Bob confesses to Alice's accusation only because he's covering up something darker or just embarrassing.
* TwoPlusTortureMakesFive: The villain tortures the hero by trying to make them believe something that's obviously not true.
* UnusuallyUninterestingName: This innocent sounding group are not a secret organisation of any sort, you won't even question their involvement or even notice their existence. The name is likely to be technically correct though.
* WoundedGazelleGambit: A guilty person acts innocent and manages to fool everyone.
* YouDidntAsk: When a character simply doesn't tell/mention something that's particularly large, hard to avoid in conversation, or just really should have been mentioned.
* YouSaidYouWouldLetThemGo: A villain lies to someone to get them to go along with a plan that will ultimately hurt those that they care about, or otherwise makes a promise that he has no intention of keeping. Often involves use of loopholes.

!!Tropes of Lies
For outright fabrications that may never be discovered as such.\\
See also DirtySocialTricks.

* AccidentalTruth: Someone intends to lie, but their "lie" was actually true.
* ActingUnnatural: People try to act innocent, but fail intensely.
* AmnesiacLiar: Somebody lies, gets amnesia, and then is told their lies because the person they lied to thinks they're true, and now the liar does too.
* AnachronisticClue: An item that cannot come from the time period it supposedly came from, which is a clue.
* BackupBluff: A character uses a lie as a last resort for when their plans fail.
* BadLiar: Somebody cannot tell convincing lies.
* BecomingTheBoast: Someone lies that they possess a skill, then is forced to actually gain that skill.
* BelievingTheirOwnLies: Somebody tells something that isn't true but they believe it.
* BigSecret: Someone lies during an investigation to hide a secret unrelated to the matter at hand.
* BlatantLies: A lie that's ''obviously a lie'', even if you don't know the details.
* BoyfriendBluff: Somebody (usually a man) saves someone else (usually a woman) by pretending to be their boyfriend or similar.
* BrandishmentBluff: Pretending to have a weapon.
* ContrivedClumsiness: Somebody does something mean and pretends it was an accident.
* CryingWolf: Lying so often that nobody believes you when you actually tell the truth.
* DarkSecret: Someone has a negative secret, which almost always leads to lying.
* DugInDeeper: Someone tells a white lie, that eventually leads to the person trying to show off the thing that was being lied about.
* DoubleSpeak: A euphemism.
* EmptyPromise: Someone makes a promise they cannot keep/don't believe.
* EngineeredHeroics: A character fakes being a hero.
* EverybodyKnewAlready: Something you think is a secret, but really isn't.
* EyesNeverLie: Looking in somebody's eyes is a surefire way of telling whether or not they're lying.
* FakeStatic: A character makes noises over the phone and pretends that it's a bad connection.
* FakeWizardry: Magic is real...but you're not actually using it.
* FakingAmnesia: Just what it sounds like, a character pretends they have amnesia.
* FalseWidow: A woman who claims she has a dead husband when really she doesn't.
* FawltyTowersPlot: Someone tells a lie, then other lies must be told to convince people the lie is true, but then it's revealed as false as it becomes too ridiculous.
* FictionNeverLies: The narrative lies.
* FriendshipDenial: Somebody denies they're another character's friend, when they clearly are.
* {{Glamour}}: TheFairFolk pretend to be an old friend of the hero/es.
* GodGuise: Pretending to be a god.
* GodNeverSaidThat: Lying about what the writers said about the work.
* HaveIMentionedIAmSexuallyActiveToday: Bragging about something sexual that the bragger didn't really do.
* HesitationEqualsDishonesty: If someone hesitates, they must be lying.
* IAmOneOfThoseToo: When you are caught in a lie by someone who just happens to have that ability / nationality for real.
* IWasNeverHere: A character claims they never came.
* ILied: A character outright admits to having previously lied.
* ImplausibleDeniability: Denying something when evidence to the contrary is right in front of the denier.
* InflationaryDialogue: A lie involving a number, that changes every time the lie is told.
* InstantlyProvenWrong: When your lie offends the universe so badly that it exposes you on the spot.
* InternalRetcon: Pretending something happened a different way from reality, because the truth would be dangerous.
* InternalReveal: The characters find something out that the audience already knew.
* InventedIndividual: Somebody makes someone up and eventually has to give up the made-up person by "killing" them or in some other way.
* InventionPretension: Someone pretends they invented something which has already been invented.
* ItsForABook: Claiming that a dodgy question is asked because you are writing a book, which is usually a lie.
* KeepingSecretsSucks: Because it involves lying a whole lot.
* LameExcuse: An implausible lie that's used as an excuse.
* LanguageOfTruth: A language that cannot be lied in.
* LetThemDieHappy: Lying that a dying character will be OK in order to let them be happy before they die.
* LiarRevealed: The protagonists learn that somebody else has been lying.
* LiesDamnedLiesAndStatistics: Using statistics to lie.
* LiesToChildren: An analogy told to a kid is essentially a lie because they take it too literally.
* LivingLieDetector: Having the ability to detect lies.
* LyingCreator: Something a creator says about a work turns out not to be true.
* LyingFingerCross: Someone crosses their fingers while making a promise they don't plan on keeping.
* LyingToProtectYourFeelings: Lying to avoid making the person being lied to sad/angry.
* LyingToThePerp: A detective lies to a suspected perpetrator in order to get them to make a mistake.
* MaliciousSlander: Somebody intentionally slanders the protagonist.
* MemoryGambit: Making yourself believe your lies just to regain memory after everyone else starts believing them.
* MetaphoricallyTrue: A "lie" that is true if you make it a metaphor.
* MockMillionaire: Pretending to be rich or powerful.
* MotivationalLie: Somebody tells a lie to motivate another person.
* TheMunchausen: Someone who goes on and on about their unlikely adventures, either because they're lying, insane or even telling the truth.
* MunchausenSyndrome: Faking illness for attention as part of a psychological condition.
* NarrativeBackpedaling: The narrative tells a story, then admits it didn't happen.
* NoTrueScotsman: Saying that if somebody is an X, they ''can't'' have been/done Y.
* TheOldestTricksInTheBook: A list of old excuses.
* ObstructiveVigilantism: Lying to the cops for the greater good. Or not.
* OpenSecret: When everyone acts like something is supposed to be a secret, but everybody knows about it anyway.
* PhonyVeteran: Lying about being in the military.
* PhotosLie: A photo doesn't show what happened before or after it was taken, leading to some lies.
* PinocchioNose: Someone always does one particular thing when they lie.
* PlagiarismInFiction: Taking someone else's work and saying it's yours.
* ThePowerOfLegacy: Lying about what somebody's last words were.
* QuoteMine: Lying that somebody said something they didn't by taking bits of what they ''did'' say out of context.
* RecruitersAlwaysLie: The recruiter lies to the recruit.
* SecretlyWealthy: Pretending not to be rich.
* SelfProclaimedLiar: Someone outright says they're lying.
* TheShadowKnows: An invisible character casts a shadow, or a shapeshifter's shadow looks like their true form.
* SnowballLie: A lie that spirals out of control, and other characters join in.
* StereoFibbing: More than one character lies at once, about the same thing but often different lies.
* SuspiciouslySpecificDenial: Somebody denies doing something ''very specific''.
* ThatLiarLies: Accusing someone of lying.
* TwoFacedAside: A character lies, then whispers or mouths the truth.
* UnreliableExpositor: Someone gives exposition, but they're lying or ignorant or both.
* UnreliableNarrator: The narrator lies or exaggerates.
* UnreliableVoiceover: A FlashBack shows the truth, but the voiceover is lying.
* WeDoNotKnowEachOther: Two or more characters pretend to be strangers.
* WeWereRehearsingAPlay: One or more characters pretend they were acting.
* WildCardExcuse: Somebody uses the same lie as an excuse for everything.
* YouCanAlwaysTellALiar: A "tell", such as in poker.
* YouWontFeelAThing: Claiming that something won't be felt, which is usually a lie.
[[/index]]
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