sn
In real, traceable use. Part of the curated seed collection; community review is coming.
Also seen as: cmsn
Meaning · English
Texting shortcut for “sinh nhật” — birthday. “cmsn” = chúc mừng sinh nhật (happy birthday).
Register: informalConnotation: texting shorthand
Where it’s used:
Used
Toàn quốc & hải ngoại · Vietnam-wide & diaspora
Origin
Mạng xã hội · Vietnamese internet culture
Sources & notes
Curated editorially (texting-shortcut collection, July 2026).
Common questions
What does “sn” mean?
Texting shortcut for “sinh nhật” — birthday. “cmsn” = chúc mừng sinh nhật (happy birthday).
Is “sn” formal or informal?
sn is generally informal; connotation: texting shorthand.