immersion vs astronomy

immersion and astronomy both are nouns.

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

immersion (noun)	astronomy (noun)
a form of baptism in which part or all of a person's body is submerged	the branch of physics that studies celestial bodies and the universe as a whole
the act of wetting something by submerging it
complete attention; intense mental effort
sinking until covered completely with water
(astronomy) the disappearance of a celestial body prior to an eclipse