introduce vs secure

introduce is not an adjective while secure is an adjective.

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

introduce (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

introduce (verb)	secure (verb)
be a precursor of	make certain of
place, fit, or thrust (something) into another thing	cause to be firmly attached
put before (a body)	fill or close tightly with or as if with a plug
cause to come to know personally	furnish with battens
furnish with a preface or introduction	get by special effort
bring before the public for the first time, as of an actor, song, etc.	assure payment of
put or introduce into something
bring something new to an environment
bring in or establish in a new place or environment
bring in a new person or object into a familiar environment