This is the 2672nd most frequent Russian word.
язык
The Russian word "язык" means "language" or "tongue" in English.
Here, 'язык' refers to a system of communication used by a country or community.
Я изучаю русский язык.
I am studying the Russian language.
In this sentence, 'язык' metaphorically refers to a person's style of speaking or tone.
У него острый язык.
He has a sharp tongue.
Here, 'язык' literally denotes the muscular organ in the mouth used for tasting and speaking.