TOS

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

TOS (countable and uncountable, plural TOSs)

1. Initialism of terms of service.

   Alternative form: ToS

2. Initialism of thoracic outlet syndrome.

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!

TOS

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

   Antonym: SOS

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

TOS

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

   Star Trek: TOS; Battlestar Galactica: TOS

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