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Meaning of hardest nut to crack | Babel Free

Noun CEFR C2

Definitions

Superlative form of hard nut to crack

form-of, superlative

CEFR level

C2

Mastery
This word is part of the CEFR C2 vocabulary — mastery level.

See also

Hardesty hardfern hardfistedness hardflip hardgainer hardgoods