Meaning of “sauce” - Learner’s Dictionary

sauce

noun [ C, U ] us uk /sɔːs/
Be careful. The chilli sauce is very hot.It was covered in a very sweet chocolate sauce.I like the sound of the beef in red wine sauce.Stir the sauce over a low heat until thick.This sauce is flavoured with garlic and herbs.

A2 a hot or cold liquid that you put on food to add flavour:

mint sauce
pasta with tomato sauce
→ See also soy sauce

(Definition of “sauce” from the Cambridge Learner’s Dictionary © Cambridge University Press)