nest vs hold tight

nest is a noun but hold tight is not a noun.

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

As verbs, hold tight is a hypernym of nest; that is, hold tight is a word with a broader meaning than nest:

Other hypernyms of nest include cling to, clutch, hold close.

nest (noun)	hold tight (noun)
a kind of gun emplacement
furniture pieces made to fit close together
a gang of people (criminals or spies or terrorists) assembled in one locality
a cosy or secluded retreat
a structure in which animals lay eggs or give birth to their young

nest (verb)	hold tight (verb)
fit together or fit inside	hold firmly, usually with one's hands
gather nests
move or arrange oneself in a comfortable and cozy position
inhabit a nest, usually after building