Definition of big top Big top

We found 3 definitions of big top from 2 different sources.

What does big top mean?

Noun
big top - a canvas tent to house the audience at a circus performance; "he was afraid of a fire in the circus tent"; "they had the big top up in less than an hour"
		circus tent, round top, top
		canvas tent, canvas, canvass a tent made of canvas fabric

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big top (Noun)
A circus tent, especially the largest in a given circus, where the central attractions take place.
big top (Noun)
The circus; the circus lifestyle.