Entry 1 sense Webster, 1913 Harlequinade /(-ād`)/ · Har·le·quin·ade · IPA /hɑːləkwɪˈneɪd/ 01 n. A play or part of a play in which the harlequin is conspicuous; the part of a harlequin. 1. A play or part of a play in which the harlequin is conspicuous; the part of a harlequin.