Meaning of “watch” - Learner’s Dictionary

watch

verb uk us /wɒtʃ/
LOOK AT [ I, T ]

A1 to look at something for a period of time:

I watched him as he arrived.
The kids are watching TV.
I want to watch the news (= programme on television).
BE CAREFUL [ T ]

B2 to be careful about something:

She has to watch what she eats.
Watch how you cross the road!
GIVE ATTENTION TO [ T ]

to give attention to a situation that is changing:

We'll be watching the case with interest.
→ See also bird-watching , watch your step

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