This is the 1848th most frequent Russian word.
органа
The Russian word "органа" is the genitive singular or nominative plural form of "орган," meaning "organ" (a part of a body or an institution).
The word 'органа' in this sentence is used to mean 'organ' as a musical instrument.
Музыкальные звуки органа наполнили весь зал.
The musical sounds of the organ filled the entire hall.
The word 'органа' here refers to 'organ' in the biological sense, as a part of the human body.
Функция данного органа в теле человека заключается в фильтрации крови.
The function of this organ in the human body is to filter blood.
Here, 'органа' is used to mean an 'organ' as in an institutional or governing body.