intubation vs insertion

intubation and insertion both are nouns.

Word	Noun	Adjective	Verb	Adverb
intubation	Yes	No	No	No
insertion	Yes	No	No	No

As nouns, insertion is a hypernym of intubation; that is, insertion is a word with a broader meaning than intubation:

Other hypernyms of intubation include introduction, intromission.

intubation (noun)	insertion (noun)
the insertion of a cannula or tube into a hollow body organ	the act of putting one thing into another
	a message (spoken or written) that is introduced or inserted