- a title of a monk in the Benedictine, Carthusian, Cistercian, and certain other monastic orders.
- a Portuguese title affixed to a man's given name; Sir: formerly a title of certain dignitaries.
- a dominant in a BDSM sexual encounter or relationship.
- to act as the dominant partner in a BDSM sexual encounter or relationship.
- to act as the dominant partner to (someone) in a BDSM sexual encounter or relationship.
- a male given name, form of Dominic.
- a potent, long-acting hallucinogen, C12H19NO2, usually taken orally in the form of a tablet: DOM is strictly controlled in several countries, including the United States, where it is illegal to manufacture, distribute, buy, or possess this psychedelic drug.
- a suffix forming nouns which refer to domain (kingdom), collection of persons (officialdom), rank or station (earldom), or general condition (freedom).
- domain.
- domestic.
- dominant.
- dominion.
- dirty old man.
- Dominica.
- Dominican.
- to God, the Best, the Greatest.
- a title given to Benedictine, Carthusian, and Cistercian monks and to certain of the canons regular
- (formerly in Portugal and Brazil) a title borne by royalty, princes of the Church, and nobles
- Deo Optimo Maximo
- Dirty Old Man
- Dominican Republic (international car registration)
- state or condition
- rank or office
- domain
- a collection of persons
- Dominican