That depends. There's a sweet fruit salad in which one puts oranges, rockmelon or watermelon. Perhaps there could be a "fruit" salad in which one puts tomatoes and olives?
We, Ukrainian, think that tomato is a vegetable)) Maybe, Polish too. Sorry my English
Many Americans and British think that a tomato is a vegetable, regardless it doesn't change the fact that scientifically speaking it is a fruit, not a vegetable.