Borrowed from Finnish t., abbreviation of terveisin (“regards”). Originally started on the Finnish imageboard Ylilauta; popularity and ironic usage outside the nation is linked to Finnish-origin memes such as "Spurdo Spärde".

t.

1. (Internet slang, 4chan, abbreviation, often humorous) Used as a way of signing off posts. Typically followed by an occupation, nationality, or field of expertise. These can sometimes be satirical, to imply said poster is being disingenuous and/or tongue-in-cheek.

   t. european

• sincerely
• regards

• IPA^(key): /ˈteː/, [ˈt̪e̞ː]
• Rhymes: -eː

t.

1. Abbreviation of terveisin (“(with) regards”)..
2. (colloquial, humorous) Used to imply the source of what is said.

   Pitää kai lähteä, t. tuo vartija.

   I guess we'll have to leave, according to that guard over there.

t.

1. Abbreviation of tai (“or”).

• IPA^(key): [ˈtistɛlt]

t.

1. Abbreviation of tisztelt.

• IPA^(key): /ˈtɔm/
• Rhymes: -ɔm
• Syllabification: [please specify syllabification manually]

t. m inan

1. Abbreviation of tom.

• t. in Wielki słownik języka polskiego, Instytut Języka Polskiego PAN
• t. in Polish dictionaries at PWN

t. (Cyrillic spelling т.)

1. Abbreviation of tačka (“point”).
2. Abbreviation of tona (“tonne”).

t.

1. to, until; Abbreviation of till.

• t.ex.
• t.o.m.

t.

1. Abbreviation of tỉnh (“province”).