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 Hunters and the general public are encouraged to be on the lookout for deer that appear sick, lethargic or unusually thin and to report their location to ADCNR. Frank Sargeant, al, "Deer Hunters Alerted to Watch for CWD," 3 Jan. 2021 Law enforcement agencies across Louisiana have been warning that officers will be on the lookout for drunk drivers, who face fines and jail time if caught and convicted. Ramon Antonio Vargas | Staff Writer, NOLA.com, "Driving hungover not much safer than driving drunk, AAA warns," 30 Dec. 2020 While an official diagnosis of seasonal affective disorder can take years to obtain, parents and practitioners can be on the lookout for specific symptoms that point to the fact that a child’s depression may be seasonal. Washington Post, "Why it’s so hard to identify seasonal depression in kids, and how to help," 28 Dec. 2020 But there are two culprits the technicians are on the lookout for: Pseudo-nitzschia, of course, and members of the genus Alexandrium, which produces the toxin that causes paralytic shellfish poisoning. Sara Harrison, Wired, "A Unique Alliance Could Help Warn Us of Toxic Algae," 23 Dec. 2020 Health care workers knew to be on the lookout for allergic reactions after the United Kingdom reported two similar cases with the Pfizer vaccine last week. Paul Best, Fox News, "CDC confirms COVID-19 vaccine allergic reactions, issues new guidance," 20 Dec. 2020 Be on the lookout for signage that describes the cleaning process in detail. Christopher Elliott, USA TODAY, "Traveling for the holidays? Here's how to avoid contracting COVID-19 at the airport," 19 Dec. 2020 No-bake ease: Haider is constantly on the lookout for easy-to-prepare recipes. Rick Nelson, Star Tribune, "We have a winner! Here are the best recipes of the 2020 Star Tribune Holiday Cookie Contest," 3 Dec. 2020 Be on the lookout for hot items from December Savings Week – featured below. Colin Daniels, Chron, "Getting all your holiday essentials is easy at Sam's Club," 8 Dec. 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

16 Jan 2021

Cite this Entry

“Lookout.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lookout. Accessed 21 Jan. 2021.

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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

More from Merriam-Webster on lookout

Thesaurus: All synonyms and antonyms for lookout

Nglish: Translation of lookout for Spanish Speakers

Comments on lookout

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