Entry 2 senses Webster, 1913 Trapeze /trəp-ēz'/ · Tra·peze · IPA /tɹəˈpiːz/ 01 n. A trapezium. See Trapezium, 1. 1. A trapezium. See Trapezium, 1.(Geom.) See: Trapezium 2. A swinging horizontal bar, suspended at each end by a rope; -- used by gymnasts.