adj

• (not comparable, of an integer) Divisible by two.
  "Four, fourteen and forty are even numbers."
• (of a number) Convenient for rounding other numbers to; for example, ending in a zero.
  "Coles. How many shares have you bought, Mr. Garfinkle? Garfinkle. One hundred and ninety-six thousand.[…] Jorgenson. […] How'd you figure out to buy such an odd amount? Why not two hundred thousand — nice even number. Thought you liked nice even numbers."
• (colloquial) On equal terms of a moral sort; quits.
  "You biffed me back at the barn, and I biffed you here—so now we're even."
• (obsolete) Without an irregularity, flaw, or blemish; pure.
  "I know my life so even."

verb

• (transitive) To make flat and level.
  "We need to even this playing field; the west goal is too low."
• (transitive, obsolete) To equal or equate; to make the same.
  "The Engliſh Earl [William Longespée the Younger], though he ſtood on the lower ground in point of birth, yet conceived himſelf to even him [Robert I, Count of Artois] in valour and martiall knowledge."
• (intransitive, obsolete) To be equal.
  "Thrice nine evens twenty seven."
• (transitive, obsolete) To place in an equal state, as to obligation, or in a state in which nothing is due on either side; to balance, as accounts; to make quits.
  "We need to even the score."

adv

• (archaic) Exactly, just, fully.
  "I fulfilled my instructions even as I had promised."

noun

• (mathematics, diminutive) An even number.
  "So let's see. There are two evens here and three odds."