Synonyms: lookout, lookout station, observation tower, observatory
Definition: a structure commanding a wide view of its surroundings
Similar words: structure, construction
Definition: a thing constructed; a complex entity constructed of many parts
Usage: the structure consisted of a series of arches; she wore her hair in an amazing construction of whirls and ribbons
Synonyms: observatory
Definition: a building designed and equipped to observe astronomical phenomena
Similar words: building, edifice
Definition: a structure that has a roof and walls and stands more or less permanently in one place
Usage: there was a three-story building on the corner; it was an imposing edifice