boron-11.
boron-11. The "11" should be superscript: B.
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Add your own interpretation of "11B".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
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(US, military slang, derogatory) An infantryman.
(Singapore, military) a conscript.
In Singapore, a 'national serviceman' (often abbreviated NS man) refers to a male citizen or permanent resident undergoing compulsory military conscription under Singapore's National Service program. Singapore has mandatory national service for male citizens reaching age 18, making the term a standard part of everyday Singaporean vocabulary. It can refer to someone currently serving full-time (NSF) or a reservist (NSman) fulfilling annual in-camp training obligations. The term is neutral and administrative in register.
(military) A civilian board that signs people up for military service in a particular area.
(Singapore, military slang, ) An identity card used by a national serviceman, as opposed to one used by a civilian.
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(US, military slang) An infantryman.
11B means: An infantryman.. It is military jargon and mostly appears in service contexts, war fiction, or among veterans and their families. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.
11B means: An infantryman.. Register: informal, military jargon. Suitable only for casual conversation, chat and social media. Do not use in business, academic or news writing. Common learner mistake is using the word in a register it does not fit, or assuming a single global meaning; always check the context before producing it yourself. A formal-English equivalent (a synonym or descriptive phrase) is usually safer in writing. When in doubt, paraphrase rather than reuse the slang form.
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