particularize vs flesh out

particularize and flesh out both are verbs.

Word	Noun	Adjective	Verb	Adverb
particularize	No	No	Yes	No
flesh out	No	No	Yes	No

As verbs, flesh out is a hypernym of particularize; that is, flesh out is a word with a broader meaning than particularize:

particularize: be specific about
flesh out: add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

Other hypernyms of particularize include dilate, elaborate, enlarge, expand, expatiate, exposit, expound, lucubrate.

particularize (verb)	flesh out (verb)
be specific about	become round, plump, or shapely
	add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
	make fat or plump