ramble vs jazz around

ramble is a noun but jazz around is not a noun.

Word	Noun	Adjective	Verb	Adverb
ramble	Yes	No	Yes	No
jazz around	No	No	Yes	No

As verbs, jazz around is a hyponym of ramble; that is, jazz around is a word with a more specific, narrower meaning than ramble:

ramble: move about aimlessly or without any destination, often in search of food or employment
jazz around: wander aimlessly in search of pleasure

Other hyponyms of ramble include maunder, gad, gallivant.

ramble (noun)	jazz around (noun)
an aimless amble on a winding course

ramble (verb)	jazz around (verb)
move about aimlessly or without any destination, often in search of food or employment	wander aimlessly in search of pleasure
continue talking or writing in a desultory manner