Definitionen
1.NounA vantage point with a view of the surrounding area.
2.NounA session of watching for an approaching enemy, police, etc."We kept a lookout all night, but nobody came."
3.NounA person on watch for approaching enemy, police, danger, etc."The raid failed when the lookout noticed the enemy group."
4.NounA subject for observation; a prospect or view.
5.NounOne's perspective, outlook; hence, one's responsibility. (used with a possessive pronoun or a noun in a possessive form)."Every person's interest is his own lookout."
6.NounAn observation window.
7.NounA joist that extends in cantilever out from the exterior wall (or wall plate) of a building, supporting the roof sheathing and providing a nailing surface for the fascia boards.