dart vs motility

dart and motility both are nouns.

Word	Noun	Adjective	Verb	Adverb
dart	Yes	No	Yes	No
motility	Yes	No	No	No

As nouns, motility is a hypernym of dart; that is, motility is a word with a broader meaning than dart:

Other hypernyms of dart include motion, move, movement.

dart (noun)	motility (noun)
a sudden quick movement	a change of position that does not entail a change of location
a tapered tuck made in dressmaking	ability to move spontaneously and independently
a small narrow pointed missile that is thrown or shot

dart (verb)	motility (verb)
run or move very quickly or hastily
move along rapidly and lightly; skim or dart
move with sudden speed