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Meaning of invariant noun | Babel Free

Noun CEFR B2

Definitions

A noun in which number is not marked; that is, a noun which does not change form in the plural, such as, in English, fish and series.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

invariant section invariant theory invariantism Invariantly Invariants invasibility

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