look·​out | \ ˈlu̇k-ˌau̇t How to pronounce lookout (audio) \

Definition of lookout

 (Entry 1 of 2)

1 : one engaged in keeping watch : watchman
2 : an elevated place or structure affording a wide view for observation
3 : a careful looking or watching on the lookout
5 : a matter of care or concern

look out

looked out; looking out; looks out

Definition of look out (Entry 2 of 2)

intransitive verb

: to take care or concern oneself used with forlooking out for number one

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Synonyms for lookout

Synonyms: Noun

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Examples of lookout in a Sentence

Noun The troops posted a lookout for the night. The mountain road had several lookouts where you could enjoy the view.
Recent Examples on the Web: Noun Luckily, there are a couple of specific symptoms of constipation to be on the lookout for, according to the Mayo Clinic and the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK). Korin Miller, SELF, "This Is How You’ll Know It’s Time to See a Doctor for Severe Constipation," 14 Feb. 2020 Boaz police issued an alert to surrounding law enforcement agencies to be on the lookout for Chamblee. Paul Gattis | Pgattis@al.com, al, "No charges expected in deadly Alabama police shooting," 13 Feb. 2020 Our reporters, who are in 46 states and Washington, DC, covering local, state and national issues, are always on the lookout for material on their beats. Editors, USA TODAY, "USA TODAY's Fact Check Guidelines," 13 Feb. 2020 The Boone County Sheriff’s Office is asking people to be on the lookout for a missing 81-year-old man who has dementia. Jeanne Houck, Cincinnati.com, "Have you see him? 81-year-old missing from Union," 12 Feb. 2020 Be on the lookout for our district tournament previews, which will appear later this week and break down Northeast Ohio districts, including players and teams to watch and predictions. Joe Magill, cleveland, "With conference titles all but decided, it’s nearly tournament time: Girls basketball Top 25 rankings," 11 Feb. 2020 Visitors only momentarily drop their masks at the entrances to the casino, to pose for thermal cameras on the lookout for the deadly Wuhan coronavirus that has killed hundreds of people in mainland China and infected thousands more. Ivan Watson, Sandi Sidhu And Brad Olson, CNN, "The Wuhan virus has turned China's gambling mecca of Macao into a ghost town," 3 Feb. 2020 Those in the health profession were advised to be on the lookout for people with a history of traveling to China and exhibiting fever and respiratory infection. Sig Christenson, ExpressNews.com, "Coronavirus evacuees headed to San Antonio," 1 Feb. 2020 Varsity Game vs Aiken WILL NO LONGER CONTINUE at this time... Please be on the lookout for any updates within the near future... Shelby Dermer, Cincinnati.com, "Fight ends boys basketball game between Woodward and Aiken in third quarter," 1 Feb. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lookout.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of lookout


1662, in the meaning defined at sense 1


1752, in the meaning defined above

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Time Traveler for lookout

Time Traveler

The first known use of lookout was in 1662

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Statistics for lookout

Last Updated

19 Feb 2020

Cite this Entry

“Lookout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lookout. Accessed 19 Feb. 2020.

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More Definitions for lookout


How to pronounce look out (audio)

English Language Learners Definition of lookout

: a person who watches an area and warns others if there is danger
: a high place or structure from which you can see a wide area


look·​out | \ ˈlu̇k-ˌau̇t How to pronounce lookout (audio) \

Kids Definition of lookout

1 : a careful watch for something expected or feared Be on the lookout for trouble.
2 : a high place from which a wide view is possible
3 : a person who keeps watch

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More from Merriam-Webster on lookout

Thesaurus: All synonyms and antonyms for lookout

Rhyming Dictionary: Words that rhyme with lookout

Spanish Central: Translation of lookout

Nglish: Translation of lookout for Spanish Speakers

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