Word.ws English Dictionary

MST

/ˌɛm ˌɛs ˈtiː/

MST is the initialism of Mountain Standard Time.

MST is the initialism of minimum spanning tree.

Meaning of Mountain Standard Time

Proper noun

Mountain Standard Time

  1. The time zone that encompasses most areas around the Rocky Mountains in the United States (except most of Arizona outside the Navajo Nation), Alberta, the cross-border city of Lloydminster and its surrounding rural municipalities in Saskatchewan, the Northwest Territories, southeastern British Columbia and the western third of Nunavut in Canada from the first Sunday of November to the second Sunday of March, and the states of Baja California Sur, Chihuahua (majority), Nayarit, Sinaloa and Sonora in Mexico year round; it is seven hours behind Coordinated Universal Time (UTC-7).
    Synonyms:
    MST

Meaning of minimum spanning tree

Noun

minimum spanning tree (plural minimum spanning trees)

  1. A spanning tree that has minimum possible weight for a given graph

Verb

MST (third-person singular simple present MSTs, present participle MSTing, simple past and past participle MSTed)

  1. (dated, slang, transitive) To mock a work (typically a fanfic) by inserting satirical commentary.
    • But you can't quote large chunks, and MSTing a story would seem to me to be across the line into infringement.1998 September 26, Brandon Ray, “Re: What is Fair Use?”, in alt.tv.x-files.creative (Usenet)
    • Maybe that's why its^([sic]) considered bad etiquette to MST without permission.2002 August 3, ForwardPast, “Re: Blanket Permission To MST 3”, in alt.startrek.creative (Usenet)

Noun (1)

MST (plural MSTs)

  1. (slang) A parody fanfic created in this manner.
    • The commentary in the MSTs may have been nasty and uncalled for; but it was not plagiarism.1999 March 10, Teddi Litman, “Re: THE ACID DESK: Vol 1, No 9 - Plagarism^([sic]) Proof”, in alt.tv.x-files.creative (Usenet)
    • The only MSTs I've seen (on alt.drwho.creative) have been of perfectly good fan fiction, deliberately cut about to make it look silly (truncating a character's words in the middle to create an^([sic]) non-existent innuendo, for example) - and those were *with* the authors' permission.2003 April 8, Igenlode W., “Re: Fan fics?”, in alt.fan.harry-potter (Usenet)

Noun (2) capitalized: MSt

MSt (plural MSts)

  1. (abbreviation) Abbreviation of Master of Studies.

Forms of MST

Noun
pluralMSTs
pluralMSts
Verb
third-person singular presentMSTs
present participleMSTing
past participleMSTed
pastMSTed
alternative formMiST

Origin of MST

From the sci-fi comedy television series Mystery Science Theater 3000, commonly known as MST3K, which features an audience of fictional characters (a man stranded in space and his robot companions) riffing real B movies.

Words formed from MST

Questions about MST

What does MST mean?
MST means to mock a work (typically a fanfic) by inserting satirical commentary.
What is MST the initialism of?
MST is the initialism of Mountain Standard Time.
What part of speech is MST?
MST can be a verb or a noun.
How do you pronounce MST?
MST is pronounced /ˌɛm ˌɛs ˈtiː/.
What is the past tense of MST?
The past tense of MST is MSTed.

Words near MST in the dictionary

  1. MSSC
  2. mssg
  3. Mssrs.
  4. MSSS
  5. MSSW
  6. MST
  7. Mst.
  8. MSTability
  9. MSTable
  10. MSTAR
  11. MSTed

Source and license

Adapted from Wiktionary: MST (page history and authors); MSt (page history and authors); Mountain Standard Time (page history and authors); minimum spanning tree (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “MST.” Word.ws, https://word.ws/mst. Based on Wiktionary, CC BY-SA 4.0.