Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun observation_tower
1 sense of observation tower
Sense 1
lookout, observation tower, lookout station, observatory -- (a structure commanding a wide view of its surroundings)
=> structure, construction -- (a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons")