verb (v)

• be different(verb.stative)

  Example:
  These two tests differ in only one respect.
  

  Antonym:
  be, equal
  

  source: wordnet30
• be of different opinions(verb.communication)

  Example:
  I beg to differ!.
  

  Synonym:
  disagree, dissent, take issue
  Antonym:
  agree, concord, concur, hold
  

  source: wordnet30
• To be or stand apart; to disagree; to be unlike; to be distinguished; -- with from.(verb)

  source: webster1913
• To cause to be different or unlike; to set at variance.(verb)

  source: webster1913