- (countable) A tart is a food like a small pie, usually with a fruit inside it.
- We ate a strawberry tart for breakfast.
- (slang) A tart is a woman who does a lot of flirting. Most people consider it an insult.
- I think she's a real tart.
- When something is tart, it has an acidic taste to it.
- The lemonade was too tart to drink.