commit + -ment

commitment is on the Academic Word List.

Word parts change

Pronunciation change

Noun change

Singular
commitment

Plural
commitments

Commitment is on the Academic Vocabulary List.
  1. A commitment is a formal promise or agreement.
    Actually I can't come on Saturday, I have family commitments.
    You don't have to make a firm commitment but we would like to know when you can probably start work.
    Police management retain their commitment to improving community relations.
    Both men have demonstrated their great commitment to Wales over the last nine months.