Promise, or personal commitment
Contract, a legally binding exchange of promises
Brand commitment
Involuntary commitment, the use of legal means or forms to commit a person to a mental hospital, insane asylum, or psychiatric ward
Ontological commitment, belief in an ontology in philosophy
Organizational commitment
Commitment scheme, in cryptography
Kingsbury Commitment, the beginning of AT&T's monopoly in the telephone industry
Climate commitment, a model of climate change
Capital commitment, the capital committed by a Limited Partner in a Private Equity Fund or Real Estate Fund