Verb necessitate has 2 senses
  1. necessitate, ask, postulate, need, require, take, involve, call for, demand - require as useful, just, or proper; "It takes nerve to do what she did"; "success usually requires hard work"; "This job asks a lot of patience and skill"; "This position demands a lot of personal sacrifice"; "This dinner calls for a spectacular dessert"; "This intervention does not postulates a patient's consent"
    Antonyms: obviate, rid of, eliminate
    Derived forms: noun necessity1, noun necessity2
    Sample sentences:
    Something ----s something
    => It ----s that CLAUSE
  2. necessitate - cause to be a concomitant
    --2 is one way to
    bring about
    Sample sentence:
    Something ----s something