Meaning of the word "watch for" in English

What does "watch for" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

watch for

US /wɑːtʃ fɔːr/
UK /wɒtʃ fɔːr/

Phrasal Verb

to be alert in order to see or find someone or something

Example:
Watch for the green light before you cross the street.
We need to watch for any suspicious activity in the neighborhood.