[ˈusnɐ]
ПроизходInherited from Proto-Slavic *ustьna; equivalent to уста (usta, “mouth”) + -на (-na).
Формиу́стна(canonical, feminine) · ústna(romanization) · у́стна(indefinite, singular) · у́стни(indefinite, plural) · у́стната(definite, singular) · у́стните(definite, plural)