bullseye /ˈbʊlzaɪ/noun 15exclamation 2forms 1 noun15 •The centre of a target, inside the inner and magpie. •The two central rings on a dartboard. •A shot which hits the centre of a target. •A commonly-known reference point used when indicating the location or direction of something. •A hard striped peppermint-flavoured boiled sweet.She had tried to look vague and sad and to murmur something in spite of the bull's-eye in her cheek […]. — 1915 •A convex glass lens which is placed in front of a lamp to concentrate the light so as to make it more conspicuous as a signal; also the lantern itself.[I]nstead of the six pair of feet which should have protruded therefrom, the gleam of the bull's-eye showed but four. — 1874 •An oculus. •(UK, slang) A £50 banknote. •An egg in a hole. •The central part of a crown glass disk, with concentric ripple effect. •A hand-cancelled postmark issued by a counter clerk at a post office, typically done on a receipt for proof of mailing. •The mark left on a glass piece from its attachment to a punty. •(informal) Any of the first postage stamps produced in Brazil from 1843. •(no longer used) Thick glass set into the side of a ship to let in light. •(slang, no longer used) A crown coin; its value, 5 shillings. exclamation2 •A cry when someone hits the bullseye of a target. •A response to a totally accurate statement.—Did John steal the petty cash? —Bullseye. formsbullseyes