[ dom; for 2 also Portuguese dawn ]
/ dɒm; for 2 also Portuguese dɔ̃ /


(sometimes initial capital letter) a title of a monk in the Benedictine, Carthusian, Cistercian, and certain other monastic orders.
(usually initial capital letter) a Portuguese title affixed to a man's given name; Sir: formerly a title of certain dignitaries.

Origin of dom

1710–20; short for Latin dominus lord, master

Definition for dom (2 of 7)

[ dom ]
/ dɒm /


a male given name, form of Dominic.

Definition for dom (3 of 7)

Definition for dom (4 of 7)

Definition for dom (5 of 7)



dirty old man.

Definition for dom (6 of 7)


a suffix forming nouns which refer to domain (kingdom), collection of persons (officialdom), rank or station (earldom), or general condition (freedom).

Origin of -dom

Middle English; Old English -dōm; cognate with Old Norse -dōmr, German -tum; see doom

Definition for dom (7 of 7)


to God, the Best, the Greatest.

Origin of D.O.M.

From the Latin word Deō Optimō Maximō Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for dom

British Dictionary definitions for dom (1 of 4)

/ (dɒm) /


(sometimes capital) RC Church 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

Word Origin for dom

C18 (monastic title): from Latin dominus lord

British Dictionary definitions for dom (2 of 4)


abbreviation for

Deo Optimo Maximo
informal Dirty Old Man

abbreviation for

Dominican Republic (international car registration)

Word Origin for DOM

(for sense 1) Latin: to God, the best, the Greatest

British Dictionary definitions for dom (3 of 4)

/ RC Church /

abbreviation for


British Dictionary definitions for dom (4 of 4)


suffix forming nouns

state or conditionfreedom; martyrdom
rank or officeearldom
domainkingdom; Christendom
a collection of personsofficialdom

Word Origin for -dom

Old English -dōm
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for dom

[ dē′ō-ĕm ]


2,5-Dimethoxy-4-methylamphetamine; an hallucinogenic agent chemically related to amphetamine.STP
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.