alignment vs astronomy

alignment and astronomy both are nouns.

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

alignment (noun)	astronomy (noun)
the act of adjusting or aligning the parts of a device in relation to each other	the branch of physics that studies celestial bodies and the universe as a whole
the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines
(astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac
an organization of people (or countries) involved in a pact or treaty