Noun | 1. | ![]() big top, circus tent, round top, 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" field tent - a canvas tent for use in the field Sibley tent - a light conical canvas tent erected on a tripod with ventilation at the top collapsible shelter, tent - a portable shelter (usually of canvas stretched over supporting poles and fastened to the ground with ropes and pegs); "he pitched his tent near the creek" wall tent - a canvas tent with four vertical walls |