lookout

noun
UK /ˈlʊkaʊt/
US /ˈlʊkaʊt/

A lookout is a person who watches carefully to see if anything is coming.

The sailor stood on the ship as a lookout for rocks and other boats.


OTHER MEANINGS

2. A place from which you watch for danger or something coming.

They climbed to the lookout at the top of the hill to see the whole valley.

3. The act of watching carefully for something.

Keep a lookout for the bus while I buy the tickets.

4. A person's own concern or problem.

That's your lookout, not mine.