looker vs sweetheart

looker and sweetheart both are nouns.

Word	Noun	Adjective	Verb	Adverb
looker	Yes	No	No	No
sweetheart	Yes	Yes	No	No

As nouns, looker and sweetheart are synonyms defined as:

Other synonyms of looker include beauty, dish, knockout, lulu, mantrap, peach, ravisher, smasher, stunner.

looker (noun)	sweetheart (noun)
a very attractive or seductive looking woman	a person loved by another person
a close observer; someone who looks at something (such as an exhibition of some kind)	a very attractive or seductive looking woman
	any well-liked individual
	a beloved person; used as terms of endearment

looker (adjective)	sweetheart (adjective)
	privileged treatment of a favored person or corporation (sometimes unethically)