- Adaptational Attractiveness: Catherine is described as "almost pretty" and Tilney as "if not quite handsome ... very near it." In the 2007 ITV adaptation they are played by Felicity Jones and J.J. Feild, respectively.
- Double Entendre:
General Tilney (who has been aggressively pushing Catherine and Henry together throughout the entire novel, as he believes she is an heiress, on the morning of his departure from Northanger): I trust you will be able to entertain our guest properly while I am gone, Henry?Henry: Nothing would give me greater pleasure, sir. *smirks at Catherine*
- Hilarious in Hindsight: The heroine of the definitive Gothic romance parody is named Catherine!
- Les Yay: Isabella's undisguised jealousy of Catherine's budding friendship with Eleanor Tilney can easily be interpreted this way now. Isabella's friendship with Catherine from the very beginning had overtones of this, particularly when Austen mentions how they always "joined arms" when they were together... That is only a modern construction, though. In the context of the culture, women holding hands (or joining arms) was an indicator of friendship, not necessarily a romantic relationship.
- Values Dissonance: John Thorpe describes someone as being "rich as a Jew."
- This is Values Dissonance from John Thorpe, but not from Jane Austen. She criticizes indirectly his xenophobia earlier in the story.
- The Setting Update version from The Austen Project doesn't change this at all, with the result that John comes off much worse much more quickly.
- In a different scene, John and Isabella physically restrain Catherine when she, angered that John dared to speak on her behalf and cancel her plans with Eleanor, wants to go and tell her friend what really happened. While they have her by the arms, her brother James berates her for not wanting to do as they wish. In a modern light, this comes across as incredibly abusive.
- "Weird Al" Effect: This is much more studied these days than the literature it mentions, so much so that many modern readers have thought that Jane Austen invented most of the Gothic titles she says Catherine has read. As it turns out, they're all real.