11B
In real, traceable use. Part of the curated seed collection; community review is coming.
Sense 1
Meaning · English
An infantryman.
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).
Sense 2
Meaning · English
An identity card used by a national serviceman, as opposed to one used by a civilian.
Register: slang
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “11B” mean?
An infantryman.
Is “11B” formal or informal?
11B is generally slang.