solicitation vs begging

solicitation and begging both are nouns.

Word	Noun	Adjective	Verb	Adverb
solicitation	Yes	No	No	No
begging	Yes	No	No	No

As nouns, begging is a hyponym of solicitation; that is, begging is a word with a more specific, narrower meaning than solicitation:

solicitation: an entreaty addressed to someone of superior status
begging: a solicitation for money or food (especially in the street by an apparently penniless person)

Other hyponyms of solicitation include beggary, mendicancy, touch, importunity, urgency, urging.

solicitation (noun)	begging (noun)
the act of enticing a person to do something wrong (as an offer of sex in return for money)	a solicitation for money or food (especially in the street by an apparently penniless person)
an entreaty addressed to someone of superior status
request for a sum of money