immersion vs attention

immersion and attention both are nouns.

Word	Noun	Adjective	Verb	Adverb
immersion	Yes	No	No	No
attention	Yes	No	No	No

As nouns, attention is a hypernym of immersion; that is, attention is a word with a broader meaning than immersion:

immersion (noun)	attention (noun)
a form of baptism in which part or all of a person's body is submerged	the work of providing treatment for or attending to someone or something
the act of wetting something by submerging it	a courteous act indicating affection
complete attention; intense mental effort	a motionless erect stance with arms at the sides and feet together; assumed by military personnel during drill or review
sinking until covered completely with water	the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others
(astronomy) the disappearance of a celestial body prior to an eclipse	the faculty or power of mental concentration
	a general interest that leads people to want to know more