segue vs transition

segue and transition both are nouns.

Word	Noun	Adjective	Verb	Adverb
segue	Yes	No	Yes	No
transition	Yes	No	Yes	No

As nouns, transition is a hypernym of segue; that is, transition is a word with a broader meaning than segue:

Other hypernyms of segue include passage.

segue (noun)	transition (noun)
the act of changing smoothly from one state or situation to another	the act of passing from one state or place to the next
	a passage that connects a topic to one that follows
	a musical passage moving from one key to another
	an event that results in a transformation
	a change from one place or state or subject or stage to another

segue (verb)	transition (verb)
proceed without interruption; in music or talk	make or undergo a transition (from one state or system to another)
	cause to convert or undergo a transition