Source : Webster's Revised Unabridged Dictionary (1913)

Become \Be*come"\, v. i. [imp. {Became}; p. p. {Become}; p. pr.
   & vb. n. {Becoming}.] [OE. bicumen, becumen, AS. becuman to
   come to, to happen; akin to D. bekomen, OHG.a piqu["e]man,
   Goth. biquiman to come upon, G. bekommen to get, suit. See
   {Be-}, and {Come}.]
   1. To pass from one state to another; to enter into some
      state or condition, by a change from another state, or by
      assuming or receiving new properties or qualities,
      additional matter, or a new character.

            The Lord God . . . breathed into his nostrils the
            breath of life; and man became a living soul. --Gen.
                                                  ii. 7.

            That error now which is become my crime. --Milton.

   2. To come; to get. [Obs.]

            But, madam, where is Warwick then become! --Shak.

   {To become of}, to be the present state or place of; to be
      the fate of; to be the end of; to be the final or
      subsequent condition of.

            What is then become of so huge a multitude? --Sir W.
                                                  Raleigh.

Become \Be*come"\, v. i. [imp. {Became}; p. p. {Become}; p. pr.
   & vb. n. {Becoming}.] [OE. bicumen, becumen, AS. becuman to
   come to, to happen; akin to D. bekomen, OHG.a piqu["e]man,
   Goth. biquiman to come upon, G. bekommen to get, suit. See
   {Be-}, and {Come}.]
   1. To pass from one state to another; to enter into some
      state or condition, by a change from another state, or by
      assuming or receiving new properties or qualities,
      additional matter, or a new character.

            The Lord God . . . breathed into his nostrils the
            breath of life; and man became a living soul. --Gen.
                                                  ii. 7.

            That error now which is become my crime. --Milton.

   2. To come; to get. [Obs.]

            But, madam, where is Warwick then become! --Shak.

   {To become of}, to be the present state or place of; to be
      the fate of; to be the end of; to be the final or
      subsequent condition of.

            What is then become of so huge a multitude? --Sir W.
                                                  Raleigh.

Become \Be*come"\, v. t.
   To suit or be suitable to; to be congruous with; to befit; to
   accord with, in character or circumstances; to be worthy of,
   or proper for; to cause to appear well; -- said of persons
   and things.

         It becomes me so to speak of so excellent a poet.
                                                  --Dryden.

         I have known persons so anxious to have their dress
         become them, as to convert it, at length, into their
         proper self, and thus actually to become the dress.
                                                  --Coleridge.

Source : WordNet®

become
     v 1: enter or assume a certain state or condition; "He became
          annoyed when he heard the bad news"; "It must be getting
          more serious"; "her face went red with anger"; "She went
          into ecstasy"; "Get going!" [syn: {go}, {get}]
     2: undergo a change or development; "The water turned into
        ice"; "Her former friend became her worst enemy"; "He
        turned traitor" [syn: {turn}]
     3: come into existence; "What becomes has duration"
     4: enhance the appearance of; "Mourning becomes Electra"; "This
        behavior doesn't suit you!" [syn: {suit}]
     [also: {became}]