Dictionary.com
Thesaurus.com
Jump To:
  • lookout
    lookout
    noun
    the act of looking out or keeping watch.
  • Lookout
    Lookout
    noun
    Cape Lookout, a sandy reef in the Outer Banks, off eastern North Carolina, southwest of Cape Hatteras: known for its lighthouse.
Synonyms

lookout

1 American  
[look-out] / ˈlʊkˌaʊt /

noun

lookouts plural
  1. the act of looking out or keeping watch.

  2. a watch kept, as for something that may happen.

  3. a person or group keeping a watch.

    Synonyms:
    guard, patrol, sentry, sentinel
  4. a station or place from which a watch is kept.

  5. an object of care or concern.

    That's not my lookout.

  6. tailpiece.

  7. Chiefly British. view; prospect; outlook.

    The business lookout is far from optimistic.


Lookout 2 American  
[look-out] / ˈlʊkˌaʊt /

noun

  1. Cape Lookout, a sandy reef in the Outer Banks, off eastern North Carolina, southwest of Cape Hatteras: known for its lighthouse.


lookout British  
/ ˈlʊkˌaʊt /

noun

  1. the act of keeping watch against danger, etc

  2. a person or persons instructed or employed to keep such a watch, esp on a ship

  3. a strategic point from which a watch is kept

  4. informal worry or concern

    that's his lookout

  5. outlook, chances, or view

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to heed one's behaviour; be careful

    look out for the children's health

  2. to be on the watch

    look out for my mother at the station

  3. (tr) to search for and find

    I'll look out some curtains for your new house

  4. to face in a particular direction

    the house looks out over the moor

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
lookout Idioms  
  1. see keep an eye out for (sharp lookout); on the lookout. Also see entries beginning with look out.


Other Word Forms

Noun Inflected Forms

Etymology

Origin of lookout

First recorded in 1690–1700; noun use of verb phrase look out

Explanation

The neighborhood kids might use a tree house as a lookout, from which they can keep an eye out for the local bully. A lookout is usually so high that a person can see for a long distance in many directions when she stands on or in it. Armies sometimes use lookouts to scout for approaching troops, and navy ships include a lookout at the top of a tall mast, also called a "crow's nest." Lookout can also be spelled as a hyphenated word, "look-out," and used as well to refer to the person whose job it is to stay in the lookout and keep watch.

Keep Reading on Vocabulary.com

Vocabulary lists containing lookout

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.

In one corner, you can spot the Hogwarts Castle at Universal Studios, and the San Gabriel Mountains surround its lookout.

From Los Angeles Times • Jun. 4, 2026

In the future, she is hopeful for more projects like this one and says they are on the lookout for some more land.

From BBC • May 25, 2026

He’s always on the lookout for situations wherein a government or a central bank makes a mistake that can be exploited.

From MarketWatch • Apr. 28, 2026

Just be on the lookout in case your device or browser needs your permission to update and reboot.

From The Wall Street Journal • Apr. 19, 2026

Leonard was always on the lookout for the “surveillance drones” he claimed flew nightly missions over Brooklyn.

From "City Spies" by James Ponti

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "lookout" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com