Meaning of twardnienie | Babel Free
/tfarˈdɲɛ.ɲɛ/Definicje
verbal noun of twardnieć
form-of, neuter, noun-from-verb
Poziom CEFR
C1
Advanced
This word is part of the CEFR C1 vocabulary — advanced level.
This word is part of the CEFR C1 vocabulary — advanced level.