dear vs beloved

dear and beloved both are nouns.

Word	Noun	Adjective	Verb	Adverb
dear	Yes	Yes	No	Yes
beloved	Yes	Yes	No	No

As adjectives, dear and beloved are synonyms defined as:

Other synonyms of dear include darling.

As nouns, dear and beloved are synonyms defined as:

Other synonyms of dear include baby, darling, dearest, dearie, deary, honey, love, sweetheart, sweetie.

dear (noun)	beloved (noun)
a beloved person; used as terms of endearment	a beloved person; used as terms of endearment
a sweet innocent mild-mannered person (especially a child)

dear (adjective)	beloved (adjective)
with or in a close or intimate relationship	dearly loved
having a high price
dearly loved
sincerely earnest

dear (adverb)	beloved (adverb)
at a great cost
with affection