call on

  • (verb): To visit (a person); to pay a call to.
  • (verb): To select (a student in a classroom, etc.) to provide an answer.
  • (verb): (also call upon) To request or ask something of (a person); to select for a task.
  • (verb): (also call upon) To have recourse to.
  • (verb): To correct; to point out an error or untruth.
  • I really should call on my aunt more often.
  • He sat there, baffled, hoping nobody would call on him.
  • The king called on his subjects to take up arms and defend the kingdom.
  • Exhausted, he called on his last ounce of strength.
  • The salesman persisted in quoting a rate higher than was listed, until we called him on it.