verb

• (transitive) To find fault with, blame, censure.
  "[…] and their thoughts the meanwhile accusing or else excusing one another."
• (transitive, law, followed by "of") To charge with having committed a crime or offence.
  "For the U.S. President to be impeached, he must be accused of a high crime or misdemeanor."
• (intransitive) To make an accusation against someone.
  "According to this saga of intellectual-property misanthropy, these creatures [patent trolls] roam the business world, buying up patents and then using them to demand extravagant payouts from companies they accuse of infringing them. Often, their victims pay up rather than face the costs of a legal battle."

noun

• (obsolete) Accusation.
  "And dogged York, that reaches at the moon, / Whose overweening arm I have plucked back, / By false accuse doth level at my life."