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Meaning of grey line | Babel Free

Noun CEFR B2

Definitions

Synonym of terminator (“the line between the day side and the night side of a moon, planet or other celestial body”).

CEFR level

B2

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

See also

grey literature grey magick grey market grey marketeer grey matter grey monitor