look out for

Idioms  

1. See to the welfare of, as in Mary was assigned to look out for the youngsters on the playground . Similar to look after , this expression appears in such terms as look out for number one , meaning “see to one's own best interests,” as in Looking out for number one is Barbara's first priority . Versions of this expression, such as take care of number one , date from 1700.

2. Be careful of or watchful for something or someone, as in Look out for broken glass on the floor , or Look out for Mary—she'll be coming any minute . [Second half of 1600s] Also see look out .

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Example Sentences

Patrollers took pictures of license plates and immigration enforcement vehicles and then sent those pictures to the Community Self Defense Coalition, so its members knew which cars to look out for across L.A.

From Los Angeles Times

Vicki's choice of restaurant is often influenced by which businesses are offering discounts - something Sarika Rana says many other diners look out for too.

From BBC

Celebrities like Naomi Watts and Halle Berry routinely popped up on my Instagram feed to tell me what symptoms I should look out for.

From The Wall Street Journal

"Small towns are small towns. We look out for each other. It's not like living in a city where you don't know your neighbor," said Shelley Quist.

From BBC

Look out for blood in your poo as well as bleeding from the bottom when you go to the toilet.

From BBC