lead off vs introduce

lead off and introduce both are verbs.

Word	Noun	Adjective	Verb	Adverb
lead off	No	No	Yes	No
introduce	No	No	Yes	No

As verbs, introduce is a hyponym of lead off; that is, introduce is a word with a more specific, narrower meaning than lead off:

lead off (verb)	introduce (verb)
set in motion, cause to start	be a precursor of
teach immoral behavior to	place, fit, or thrust (something) into another thing
	put before (a body)
	cause to come to know personally
	furnish with a preface or introduction
	bring before the public for the first time, as of an actor, song, etc.
	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