DM
- (international standards)ISO 3166-1alpha-2country code forDominica.
- Synonym:DMA(alpha-3)
DM (countable anduncountable,pluralDMs)
- (computing, DWH)Initialism ofdimensional modeling.
- (logic)Initialism ofDe Morgan’s law.
2004 August, J. L. Schellenberg, “The Atheist’s Free Will Offence”, inInternational Journal for Philosophy of Religion,volume 56, № 1, pages 11-12:Let ‘F’ stand for the state of affairs that consists in finite persons possessing and exercising free will. Let ‘p’ stand for ‘God exists’; ‘q’ for ‘F obtains’; ‘r’ for ‘F poses a serious risk of evil’; and ‘s’ for ‘There is no option available to God that counters F.’ With this in place, the argument may be formalized as follows:
(1) [(p & q) & r] → s Premiss
(2) ~s Premiss
(3) ~[(p & q) & r] 1, 2 MT
(4) ~(p & q) v ~r 3DM
(5) r Premiss
(6) ~(p & q) 4, 5 DS
(7) ~p v ~q 6DM
(3) follows from the conjunction of (1) and (2) bymodus tollens; De Morgan’s law applied to (3) yields (4); (4) and (5) together lead to (6) by disjunctive syllogism; and another application of De Morgan’s law takes us from (6) to the final conclusion, according to which either God exists or there is free will (but not both).
- (money)Initialism ofDeutsche Mark.
- Synonym:(official banking code)DEM
- (nutrition)Initialism ofdrymatter.
- (pathology)Initialism ofdiabetes mellitus.
- (pathology)Initialism ofdermatomyositis.
- (organic chemistry)adamsite, diphenylaminechlorarsine
- (physics, astronomy)Abbreviation ofdark matter.
- Hyponyms:CDM,HDM,FDM
- (pharmacology)Abbreviation ofdextromethorphan;alsoDXM.
- (rail transport, in multiple unit formations)driving motor car
- (roleplaying games)Initialism ofdungeon master ordungeon mistress.
- Synonyms:GM,ST
2004 March 22, Death Quaker, “[STATS] Postings for alt.fan.utena 1-Feb-2004 to 1-Mar-2004”, inalt.fan.utena[1] (Usenet), archived fromthe original on22 November 2025:DQ: "DM" stands for "Dungeon Master"--or I guess in my case Dungeon Mistress. *blinks* _That's_ got all kindsa wrong connotations, doesn't it? #o_o#
- (Internet)Initialism ofdirectmessage(type of message onsocial media platforms).
- Synonym:PM(“private message”)
- Coordinate terms:PM,IM
2012, Scott Stratten, Alison Kramer,UnMarketing: Stop Marketing. Start Engaging:He later sent me aDM mentioning that he would send me what he wears because he does a lot of walking. This is where the relationships online can get a wee bit weird.
- Initialism ofduty manager.
- (philosophy)Initialism ofdialectical materialism.
- (BDSM)Initialism ofdungeon master,dungeon mistress, ordungeon monitor.
1999, Patricia Payne, “The Master of D/stiny”, inSex Tips from a Dominatrix, New York, N.Y.:ReganBooks,→ISBN, chapter 8 (D/sense and Sensibility),page138:But the most important people at any gathering are those in charge of safety, referred to as Dungeon Master/Mistress (DM).[…]DMs are willing to help instruct novices on the safe use of all equipment provided on the premises and also act as mediators if there are any scenes that have potential safety concerns.
2001, Claudia Varrin, “SM Players, Their Scene, and Their Etiquette”, inErotic Surrender: The Sensual Joys of Female Submission, New York, N.Y.:Citadel Press,→ISBN,page204:Most club parties and private parties held in commercial dungeons in the United States have a dungeon master, mistress, or monitor (DM), whose responsibility it is to make sure that scenes are consensual and house rules are obeyed. If theDM asks you to stop doing something, please stop right away whether you feel you are right or wrong.
2003, Suzi Parker, “Sticks and Stones, Whips and Chains”, inSex in the South: Unbuckling the Bible Belt, Boston, Mass.: Justin, Charles & Co.,→ISBN,page101:Dungeon Master (DM) decisions are final. No appeals, arguments, or whining allowed. If aDM says to stop a scene, the scene must stop immediately.
- (colloquial) ADr. Martensboot orshoe.
2012, W. Freedreamer Tinkanesh,Outsider, page19:She kicked a hardback book with her leftDM boot (14 eyelets were the minimum she would settle for), but the bestseller persisted in her path.
- (soccer)Initialism ofdefensivemidfielder.
- (underwaterdiving)Initialism ofdivemaster.
- (occupational health)Initialism ofdust andmist.
- (video games)Initialism ofdeathmatch.
- (software)Abbreviation ofdisplay manager.
- Coordinate terms:WM,DE
DM (third-person singular simple presentDMs,present participleDMing,simple past and past participleDMedorDM'd)
- (Internet, transitive) Tocommunicate bydirect message, usually on asocial mediawebsite.
2021 August 2,Tyrone Mings, quotee, “Tyrone Mings Opens Up over Mental Health Struggles ahead of Euro 2020”, inYahoo! Sports[2], archived fromthe original on4 August 2021:Rio[Ferdinand]DM’d me after the tournament. He’d said I was the weak link, and that Croatia should be targeting me.
- (roleplaying games) Todungeon master; to perform as adungeon master; to run atabletoprole-playing game.
- Synonym:GM
DM
- (UK)Initialism ofDaily Mail, a national newspaper.
- (linguistics)Initialism ofDistributed Morphology.
DM f (genitiveDM,no plural)
- (money, historical)initialism ofDeutsche Mark
- Coordinate term:M
Declension ofDM [sg-only, feminine]
DM
- initialism ofDīs Mānibus, to/for theSpirits of theDead, to/for theSpirit of theDeceased.
Extremely common as an initial formula on classical and late Roman tombstones, both pagan and Christian. CompareSD in Roman letter-writing.
DM n
- abbreviation ofdistriktmästerskap(“district championship”)[since 1925][1]
- abbreviation ofdirektmeddelande(“direct message”)
(district championship):
(direct message):
