verb (v)

• require as useful, just, or proper(verb.stative)

  Example:
  Success usually requires hard work.
  

  Synonym:
  ask, call for, demand, involve, necessitate, need, postulate, take
  Antonym:
  eliminate, obviate, rid of
  

  source: wordnet30
• consider obligatory; request and expect(verb.communication)

  Example:
  We require our secretary to be on time.
  

  Synonym:
  ask, expect
  

  source: wordnet30
• make someone do something(verb.communication)

  Synonym:
  command
  

  source: wordnet30
• have need of(verb.consumption)

  Synonym:
  need, want
  

  source: wordnet30
• To demand; to insist upon having; to claim as by right and authority; to exact; as, to require the surrender of property.(verb)

  source: webster1913