nip vs piquancy

nip and piquancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
nip	Yes	No	Yes	No
piquancy	Yes	No	No	No

As nouns, nip and piquancy are synonyms defined as:

Other synonyms of nip include piquance, piquantness, tang, tanginess, zest.

nip (noun)	piquancy (noun)
a small sharp bite or snip	a tart spicy quality
a tart spicy quality	the quality of being agreeably stimulating or mentally exciting
the property of being moderately cold
the taste experience when a savoury condiment is taken into the mouth
a small drink of liquor

nip (verb)	piquancy (verb)
squeeze tightly between the fingers
sever or remove by pinching or snipping
give a small sharp bite to