look out
verb
RareNot in standard dictionaries
1
To be vigilant and aware often as an imperative to alert a person to danger.
2
To find by looking: to hunt out.
3
To be facing.
4
Used other than figuratively or idiomatically: see look, out.
5
Ellipsis of look out for (someone)
6
To be supportive or protective of someone.
#informal