twin
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
A term of endearment for a close friend, indicating a strong, sibling-like bond. Also used to imply that the user is similar to another person in a particular manner.
Register: informalEra: 2020s
Where it’s used:
Used
American English
• Gen Z / internet register
Sources & notes
Adapted from Wikipedia “Glossary of 2020s slang” (CC BY-SA 4.0, retrieved 2026-07-30). US Gen Z / internet usage.
Common questions
What does “twin” mean?
A term of endearment for a close friend, indicating a strong, sibling-like bond. Also used to imply that the user is similar to another person in a particular manner.
Is “twin” formal or informal?
twin is generally informal.