sailplane vs glide

sailplane and glide both are nouns.

Word	Noun	Adjective	Verb	Adverb
sailplane	Yes	No	Yes	No
glide	Yes	No	Yes	No

As verbs, glide is a hypernym of sailplane; that is, glide is a word with a broader meaning than sailplane:

sailplane (noun)	glide (noun)
aircraft supported only by the dynamic action of air against its surfaces	the act of moving smoothly along a surface while remaining in contact with it
	the activity of flying a glider
	a vowellike sound that serves as a consonant

sailplane (verb)	glide (verb)
fly a plane without an engine	move smoothly and effortlessly
	fly in or as if in a glider plane
	cause to move or pass silently, smoothly, or imperceptibly