AskDefine | Define flatten

Dictionary Definition



1 make flat or flatter; "flatten a road"; "flatten your stomach with these exercises"
2 become flat or flatter; "The landscape flattened" [syn: flatten out]
3 lower the pitch of (musical notes) [syn: drop] [ant: sharpen]

User Contributed Dictionary




  1. To make something flat or flatter.
    As there was a lot of damage, we chose the heavy roller to flatten the pitch.
    Mary would flatten the dough before rolling it into pretzels.
  2. To knock down or lay low.
    The prize fighter quickly flattened his challenger.
  3. To become flat or flatter.
  4. To be knocked down or laid low.


to make something flat
to become flat
  • Italian: appiattirsi

Synonyms, Antonyms and Related Words

align, assimilate to, balance, beat down, bend, blow down, break, break down, bring down, bulldoze, burn down, cast down, chop down, conquer, crush, cut down, dab, damp, demolish, disentangle, down, drag, dress, dub, equalize, equilibrize, even, extend, fell, floor, flush, grade, grease, ground, harmonize, harrow, homogenize, humble, knock, knock down, knock out, knock over, lay, lay down, lay flat, lay level, lay low, lay out, level, lubricate, make uniform, master, mow, mow down, normalize, oil, override, plane, planish, plaster, press out, prostrate, pull down, put down, put straight, quell, rase, raze, rectify, reduce, regularize, regulate, ride down, roll, roll flat, set straight, shave, sit up, smash, smooth, smooth down, smooth out, smoothen, stabilize, stand up, standardize, steamroll, steamroller, stereotype, straighten, straighten out, straighten up, subdue, subjugate, suppress, symmetrize, take down, tear down, throw down, trample down, trample underfoot, tread underfoot, unbend, uncurl, uniformize, unkink, unsnarl, vanquish
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