hold tight vs nestle

hold tight is not a noun while nestle is a noun.

Word	Noun	Adjective	Verb	Adverb
hold tight	No	No	Yes	No
nestle	Yes	No	Yes	No

As verbs, nestle is a hyponym of hold tight; that is, nestle is a word with a more specific, narrower meaning than hold tight:

Other hyponyms of hold tight include cuddle, draw close, nest, nuzzle, snuggle.

hold tight (noun)	nestle (noun)
	a close and affectionate (and often prolonged) embrace

hold tight (verb)	nestle (verb)
hold firmly, usually with one's hands	move or arrange oneself in a comfortable and cozy position
	position comfortably
	lie in a sheltered position