TOS

See also: Appendix:Variations of "tos"

English

Pronunciation

• IPA^(key): /tiː əʊ ɛs/ (letter-by-letter)
• IPA^(key): /tɔs/

Noun

TOS (countable and uncountable, plural TOSs)

1. Initialism of terms of service.

   Alternative form: ToS

2. Initialism of thoracic outlet syndrome.

Verb

TOS (third-person singular simple present TOSes, present participle TOSing, simple past and past participle TOSed or TOS'd)

1. (transitive, Internet slang, dated) To report another user for a real or imagined terms of service violation.
   • 2003, Michael Newton, The Encyclopedia of High-tech Crime and Crime-fighting‎^[1], AOL Riot on June 1, 1998, page 21:

     If you want to join this riot, we urge you to! You wont have to worry about being TOSed or reported because there will be no Guides online! So do whatever you want—punt, scroll, tos, just turn AOL into a war zone!

Adjective

TOS (not comparable)

1. (Internet slang) Against terms of service; likely to trigger a suspension or ban.
   • 2021 December 22, “Disguised Toast immediately regrets letting Twitch viewers control his Amazon shopping”, in Dexerto‎^[2], archived from the original on 6 September 2026:

     When the bot selected “sex doll” as the winner an image of the product it chose came up when Toast instantly shouted, “Oh My God, that’s TOS.”

Phrase

TOS

1. (Commonwealth, military, historical) Initialism of taken on strength.

   Antonym: SOS

Usage notes

• Only used with the past participle, chiefly in historical military records.

Proper noun

TOS

1. (fandom slang, retronym) Initialism of the old series or the original series.

   Star Trek: TOS; Battlestar Galactica: TOS

Anagrams

• sto, OTs, ost, Tso, OTS, sot, SOT, ots, OST, TSO