organ
Pronunciation: /ˈɔːg(ə)n/
noun
- 1a part of an organism which is typically self-contained and has a specific vital function: the internal organs
- used euphemistically to refer to the penis: the male organ
- archaic a region of the brain formerly held to be the seat of a particular faculty.
- 2 (also pipe organ) a large musical instrument having rows of pipes supplied with air from bellows (now usually electrically powered), and played using a keyboard or by an automatic mechanism. The pipes are generally arranged in ranks of a particular type, each controlled by a stop, and often into larger sets linked to separate keyboards. See also reed organ
- an electronic keyboard instrument that produces sounds similar to those of a pipe organ.

Origin:
late Old English, via Latin from Greek organon 'tool, instrument, sense organ', reinforced in Middle English by Old French organe