pimple vs hickey

pimple and hickey both are nouns.

Word	Noun	Adjective	Verb	Adverb
pimple	Yes	No	No	No
hickey	Yes	No	No	No

As nouns, pimple and hickey are synonyms defined as:

pimple and hickey: a small inflamed elevation of the skin; a pustule or papule; common symptom in acne

Other synonyms of pimple include zit.

pimple (noun)	hickey (noun)
a small inflamed elevation of the skin; a pustule or papule; common symptom in acne	a temporary red mark on a person's skin resulting from kissing or sucking by their lover
	a small inflamed elevation of the skin; a pustule or papule; common symptom in acne