SYN: Plane, surface, floor, equality, aim, platform, ground, coordinateness, horizontally.
ANT: Unevenness, acclivity, declivity, inequality, inco-ordinateness, verticality.
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KEY: Level \v.\
SYN: Plane, smooth, roll, flatten, equalize, raze.
ANT: Roughen, furrow, disequalize, graduate.
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KEY: Level \a.\ Horizontal, plain, flat, even, smooth.
ANT: Rough, uneven, broken, rolling.
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