glider vs hang glider

glider and hang glider both are nouns.

Word	Noun	Adjective	Verb	Adverb
glider	Yes	No	No	No
hang glider	Yes	No	No	No

As nouns, hang glider is a hyponym of glider; that is, hang glider is a word with a more specific, narrower meaning than glider:

glider: aircraft supported only by the dynamic action of air against its surfaces
hang glider: a glider resembling a large kite; the rider hangs from it while descending from a height

glider (noun)	hang glider (noun)
aircraft supported only by the dynamic action of air against its surfaces	a glider resembling a large kite; the rider hangs from it while descending from a height
	a rider of a hang glider