Refers to the keyboard instrument, typically pipe organ or electronic organ. Loanword from Portuguese 'órgão'.
from Portuguese órgão
教会でパイプオルガンの演奏を聴いた。
I listened to a pipe organ performance at the church.
彼女はオルガンを習い始めた。
She started learning to play the organ.
She plays the organ at the church.
The sound of the organ resounded through the chapel.
reed organ