Definition of "look out" in English

Verb

1. To be vigilant and aware often as an imperative to alert a person to danger.

   • While you're in the city center, look out for the dodgy street vendors.

2. To find by looking: to hunt out.

3. To be facing.

   • A spacious room that looks out on the sea.

4. Used other than figuratively or idiomatically: see look,‎ out.

5. Ellipsis of look out for (someone)

   • Hey man, I know it costs four dollars but I only have three. Can you please look out?

6. To be supportive or protective of someone.

   • You better look out for your little brother.