treadle vs organ

treadle and organ both are nouns.

Word	Noun	Adjective	Verb	Adverb
treadle	Yes	No	Yes	No
organ	Yes	No	No	No

treadle (noun)	organ (noun)
a lever that is operated with the foot	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
	(music) an electronic simulation of a pipe organ
	a free-reeded instrument with a piano keyboard in which air is forced through the reeds by bellows
	a fully differentiated structural and functional unit in an animal that is specialized for some particular function
	a periodical that is published by a special interest group
	a government agency or instrument devoted to the performance of some specific function

treadle (verb)	organ (verb)
operate (machinery) by a treadle
tread over