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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 .


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“We have to look out for our future and our new generations, to be strong in realms other than weapons.”

From Los Angeles Times • Jun. 22, 2026

President Emmanuel Macron on X urged French people to "look out for others", especially the elderly, children and isolated or vulnerable people.

From Barron's • Jun. 21, 2026

Even if the weather is good, you need to look out for rip currents if you're swimming in the sea, Hall says.

From BBC • Jun. 20, 2026

Here are some others to look out for.

From The Wall Street Journal • Jun. 16, 2026

Like Tommy said, I look out for my people.

From "We Were Here" by Matt De La Peña

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