(noun, verb)


1. a fully differentiated structural and functional unit in an animal that is specialized for some particular function

Definition categories: body

2. a government agency or instrument devoted to the performance of some specific function

- The Census Bureau is an organ of the Commerce Department

Definition categories: group, agency, authority, bureau, office

3. (music) an electronic simulation of a pipe organ

Definition categories: man–made

4. a periodical that is published by a special interest group

- the organ of the communist party

Definition categories: communication, periodical

5. wind instrument whose sound is produced by means of pipes arranged in sets supplied with air from a bellows and controlled from a large complex musical keyboard

Definition categories: man–made, wind

6. a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows

Similar word(s): harmonium

Definition categories: man–made, instrument


1. (obsolete, transitive) To supply with an organ or organs; to fit with organs.