<p><strong>Noun</strong></p><ul><li>a person or thing that bumps.</li><li>a metal guard, usually horizontal, for protecting the front or rear of an automobile, truck, etc.</li><li>any protective rim, guard, pad, or disk for absorbing shock and preventing damage from bumping, as a rubber-tipped doorstop or an old tire on the side of a boat.</li><li>a cup or glass filled to the brim, as with beer.</li><li>Informal: something unusually large.</li><li>a person who molds bricks by hand.</li><li>Foundry: a machine for ramming sand into a mold.</li><li>a carangid fish, <em>Chlorosombrus chrysurus</em>, of southern U.S. and Cuban coastal seas.</li><li>Television: also bump.</li><li>Also called bumper tease: in a news program, a brief teaser coming at the end of a segment just before commercials, announcing or previewing a forthcoming story.</li><li>Also called commercial bumper: a brief interval of music, graphics, or voiceover serving as a transition between program and advertising content.</li></ul><p><strong>Adjective</strong></p><ul><li>unusually abundant: Bumper crops reaped a big profit for local farmers.</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to fill to the brim.</li></ul>