T.O.
In real, traceable use. Part of the curated seed collection; community review is coming.
Also seen as: tu
Meaning · English
The city of Toronto.
Register: slang
Where it’s used:
Used
American English
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “T.O.” mean?
The city of Toronto.
Is “T.O.” formal or informal?
T.O. is generally slang.