sailplaning vs gliding

sailplaning and gliding both are nouns.

Word	Noun	Adjective	Verb	Adverb
sailplaning	Yes	No	No	No
gliding	Yes	No	No	No

As nouns, sailplaning and gliding are synonyms defined as:

Other synonyms of sailplaning include glide, sailing, soaring.

sailplaning (noun)	gliding (noun)
the activity of flying a glider	the activity of flying a glider