expand vs expandible

expand is not an adjective while expandible is an adjective.

Word	Noun	Adjective	Verb	Adverb
expand	No	No	Yes	No
expandible	No	Yes	No	No

expand (adjective)	expandible (adjective)
	(of gases) capable of expansion
	able to expand or be expanded

expand (verb)	expandible (verb)
grow vigorously
exaggerate or make bigger
become larger in size or volume or quantity
expand the influence of
make bigger or wider in size, volume, or quantity
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
extend in one or more directions