fortify vs secure

fortify is not an adjective while secure is an adjective.

Word	Noun	Adjective	Verb	Adverb
fortify	No	No	Yes	No
secure	No	Yes	Yes	No

As verbs, secure is a hyponym of fortify; that is, secure is a word with a more specific, narrower meaning than fortify:

fortify (adjective)	secure (adjective)
	free from fear or doubt; easy in mind
	free from danger or risk
	not likely to fail or give way
	immune to attack; incapable of being tampered with
	financially safe

fortify (verb)	secure (verb)
add alcohol to (beverages)	make certain of
make strong or stronger	cause to be firmly attached
add nutrients to	fill or close tightly with or as if with a plug
prepare oneself for a military confrontation	furnish with battens
enclose by or as if by a fortification	get by special effort
	assure payment of