What does lookout mean?
A lookout is a person, place, or act associated with watching carefully for danger or noteworthy activity. The word can describe someone assigned to keep watch, as in a lookout spotting ships or approaching vehicles. It can also name a suitable observation point, such as a lookout tower, cliff, or hidden post. In phrases such as “keep a lookout” and “be on the lookout,” it conveys sustained vigilance rather than a brief glance. Lookouts are associated with military defense, maritime observation, fire and wildlife monitoring, and general safety. The term is useful because it covers both the watcher and the strategic vantage point, while also extending figuratively to describe a state of alertness. Although it commonly has a practical or protective purpose, it can also refer more broadly to watching for anything interesting, unusual, or noteworthy.
nounA lookout is a person or place from which something is watched, especially for danger. It can also refer to the act of keeping watch or to a period of heightened alertness.
- A person whose task is to watch for danger, enemies, or other notable activity.
- A place or position from which an area can be observed.
- The act of watching carefully or being alert to possible danger.
"From the lookout tower, the ranger scanned the valley for signs of smoke."
"The lookout sounded the alarm as the storm approached."
"Local residents were asked to keep an eye on the lookout for unusual activity."
The usual plural form when referring to multiple watching people, positions, or observation points.
"The coast has several lookouts positioned along the cliffs."
A lookout turns vigilance into a vantage point: sometimes one person stands watch, sometimes an entire landscape becomes the observer.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does lookout come from?
The word is a compound of “look” and “out,” drawing on the older sense of looking outward in order to watch for danger. Its use for both a watching person and a place from which observation is possible developed from this broader idea of vigilance. It belongs to a family of English compounds built on “look,” including “overlook” and the now less common “underlook.”
Related word forms
How lookout is actually used
The word is common in British and American English. When referring to a person, it is often used in the phrase “keep a lookout”; “be on the lookout” is especially common for remaining alert to possible trouble.
Easily confused with lookout
A lookout is a person, place, or act of watching for danger, whereas an outlook is a prospect, expectation, or general attitude toward a situation.