Meaning of tough nut to crack | Babel Free

Noun CEFR C2

Definitions

Synonym of hard nut to crack.

Deutsch harte Nuss

Español hueso duro de roer

Suomi kova pähkinä purtavaksi

Italiano gatta da pelare

Русский кре́пкий оре́шек

Svenska svår nöt att knäcka

Türkçe çetin ceviz

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