submersible vs submerge

submersible is a noun but submerge is not a noun.

Word	Noun	Adjective	Verb	Adverb
submersible	Yes	Yes	No	No
submerge	No	No	Yes	No

submersible (noun)	submerge (noun)
a warship designed to operate under water
an apparatus intended for use under water

submersible (adjective)	submerge (adjective)
capable of being immersed in water or functioning while submerged

submersible (verb)	submerge (verb)
	fill or cover completely, usually with water
	cover completely or make imperceptible
	put under water
	sink below the surface; go under or as if under water