Definition of lookout
- on the lookout
The troops posted a lookout for the night.
The mountain road had several lookouts where you could enjoy the view.
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.
: 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
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