commit, committing 1. To pledge devotion or dedication to someone or something: 'He wasn't yet ready to commit to the relationship.' 2. To devote or pledge something; such as, time or money to an undertaking. 3. To do something wrong or illegal: 'He was caught committing a felony.' 4. To entrust something or someone to another person for protect... Found on http://www.wordinfo.info/words/index/info/view_unit/1319/2