gist vs bare bones

gist and bare bones both are nouns.

Word	Noun	Adjective	Verb	Adverb
gist	Yes	No	No	No
bare bones	Yes	No	No	No

As nouns, bare bones is a hyponym of gist; that is, bare bones is a word with a more specific, narrower meaning than gist:

gist: the choicest or most essential or most vital part of some idea or experience
bare bones: (plural) the most basic facts or elements

Other hyponyms of gist include hypostasis, haecceity, quiddity, quintessence, stuff.

gist (noun)	bare bones (noun)
the choicest or most essential or most vital part of some idea or experience	(plural) the most basic facts or elements
the central meaning or theme of a speech or literary work