Simple Definition of fifth wheel
: an extra person who is not needed in a group
Full Definition of fifth wheel
1 a : a horizontal wheel or segment of a wheel that consists of two parts rotating on each other above the fore axle of a carriage and that forms support to prevent tipping b : a similar coupling between tractor and trailer of a semitrailer
2 : one that is superfluous, unnecessary, or burdensome
Examples of fifth wheel in a sentence
He felt more and more like a fifth wheel at the office.
First Known Use of fifth wheel
Rhymes with fifth wheel
aiguille, all-wheel, anneal, appeal, big deal, big wheel, bilge keel, bonemeal, bonspiel, cam wheel, Castile, cartwheel, chainwheel, chenille, cogwheel, conceal, congeal, cornmeal, done deal, eared seal, enwheel, fish meal, flywheel, forefeel, for real, four-wheel, freewheel, fur seal, genteel, get real, good deal, great seal, handwheel, harp seal, ideal, inchmeal, mild steel, mill wheel, misdeal, mobile, Mobile, monk seal, mouthfeel, New Deal, newsreel, nosewheel, oatmeal, O'Neal, pastille, piecemeal, pinwheel, prayer wheel, raw deal, repeal, reveal, schlemiel, self-heal, side-wheel, singspiel, somedeal, spike heel, stabile, tahsil, Tar Heel, thumbwheel, unreel, unseal, worm wheel
Learn More about fifth wheel
Britannica.com: Encyclopedia article about fifth wheel
Seen and Heard
What made you want to look up fifth wheel? Please tell us where you read or heard it (including the quote, if possible).