Definition of four–o'clock
: any of a genus (Mirabilis) of chiefly American annual or perennial herbs (family Nyctaginaceae, the four-o'clock family) having apetalous flowers with a showy involucre simulating a calyx; especially : a garden plant (M. jalapa) with fragrant yellow, red, or white flowers opening late in the afternoon
First Known Use of four–o'clock
Rhymes with four–o'clock
acid rock, aftershock, alarm clock, alpenstock, antilock, Antioch, Arawak, banjo clock, billycock, building block, butcher-block, chockablock, chopping block, cinder block, clean one's clock, common stock, country rock, cuckoo clock, culture shock, floating dock, future shock, glitter rock, hammerlock, hollyhock, Holy Loch, interlock, in the dock, John Hancock, kill the clock, lady's-smock, Languedoc, laughingstock, Little Rock, manioc, monadnock, on the block, out of stock, penny stock, phosphate rock, pillow block, poppycock, preferred stock, Ragnarok, rolling stock, septic shock, starting block, shuttlecock, spatterdock, sticker shock, summer stock, superblock, tracking stock, treasury stock, turkey-cock, vapor lock, water clock, weathercock, writer's block
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