This is the 17873rd most frequent Russian word.
уст
"Уст" is an old or poetic term meaning "mouth" or "lips" in English.
The word 'уст' is used in the context of 'lips,' symbolizing the source of spoken words.
Слово, произнесенное из уст оратора, произвело большое впечатление на слушателей.
A word spoken from the speaker's lips made a great impression on the audience.
The phrase 'из первых уст' uses 'уст' metaphorically to indicate 'first-hand accounts,' signifying personal testimony.
Рассказ из первых уст всегда вызывает больше доверия.
A story from first-hand accounts always inspires more trust.
Here, 'уст' is employed to metaphorically represent the transmission of verbal traditions or poetry.