sandboy vs hawker

sandboy and hawker both are nouns.

Word	Noun	Adjective	Verb	Adverb
sandboy	Yes	No	No	No
hawker	Yes	No	No	No

As nouns, hawker is a hypernym of sandboy; that is, hawker is a word with a broader meaning than sandboy:

sandboy: a young peddler of sand; used now only to express great happiness in `happy as a sandboy'
hawker: someone who travels about selling his wares (as on the streets or at carnivals)

Other hypernyms of sandboy include packman, peddler, pedlar, pitchman.

sandboy (noun)	hawker (noun)
a young peddler of sand; used now only to express great happiness in `happy as a sandboy'	someone who travels about selling his wares (as on the streets or at carnivals)
	a person who breeds and trains hawks and who follows the sport of falconry