beg vs importune

beg and importune both are verbs.

Word	Noun	Adjective	Verb	Adverb
beg	No	No	Yes	No
importune	No	No	Yes	No

As verbs, importune is a hyponym of beg; that is, importune is a word with a more specific, narrower meaning than beg:

Other hyponyms of beg include crave, supplicate, insist.

beg (verb)	importune (verb)
call upon in supplication; entreat	beg persistently and urgently
make a solicitation or entreaty for something; request urgently or persistently
dodge, avoid answering, or take for granted
ask to obtain free