Word.ws English Dictionary

11B

11B noun: an infantryman.

Noun

11B

  1. (US, slang) An infantryman.
  2. (Singapore, slang) An identity card used by a national serviceman, as opposed to one used by a civilian.
    • NSmen just have to present their SAF Identity Card (commonly known as 11B), or don their uniforms at stores displaying the "We Support NS" decal.2019 June 29, “Fact Sheet: "We Support NS" 2019”, in Ministry of Defence
    • “This won’t happen to us,” I thought to myself. We have red passports and I have a 11B.2021 May 15, “Let’s Talk About The CECA Racism & Xenophobia”, in Kopi
  3. boron-11. The "11" should be superscript: ¹¹B.

Forms of 11B

alternative form11b

Origin of 11B

From the 11 basic information recorded on the identity card carried by Singaporeans in National Service.

Questions about 11B

What does 11B mean?
11B means an infantryman.
What part of speech is 11B?
11B is a noun.

Words near 11B in the dictionary

  1. 110%
  2. 110s
  3. 111
  4. 112
  5. 119
  6. 11B
  7. 11D chess
  8. 11s
  9. 11th
  10. 11th Cir.
  11. 11th commandment

Source and license

Adapted from Wiktionary: 11B (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “11B.” Word.ws, https://word.ws/11b. Based on Wiktionary, CC BY-SA 4.0.