/look"owt'/ , n.
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.
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 (def. 4).
7. Chiefly Brit. view; prospect; outlook: The business lookout is far from optimistic.
[ 1690-1700; n. use of v. phrase look out ]
Syn. 3. sentinel, sentry, patrol, guard.