introduce vs plug in

introduce and plug in both are verbs.

Word	Noun	Adjective	Verb	Adverb
introduce	No	No	Yes	No
plug in	No	No	Yes	No

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

introduce (verb)	plug in (verb)
be a precursor of	plug into an outlet
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