Ram vs doer

Ram and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ram	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of Ram; that is, doer is a word with a broader meaning than Ram:

Other hypernyms of Ram include actor, worker.

Ram (noun)	doer (noun)
the first sign of the zodiac which the sun enters at the vernal equinox; the sun is in this sign from about March 21 to April 19	a person who acts and gets things done
(astrology) a person who is born while the sun is in Aries