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Meaning of 21-gon | Babel Free

Noun CEFR B1

Definitions

Synonym of icosihenagon: A polygon with twenty-one edges and twenty-one angles.

CEFR level

B1

Intermediate
This word is part of the CEFR B1 vocabulary — intermediate level.

See also

2100s 2110s 2120s 2160s 2170s 21st CCLC