hob vs sandman

hob and sandman both are nouns.

Word	Noun	Adjective	Verb	Adverb
hob	Yes	No	Yes	No
sandman	Yes	No	No	No

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

hob: (folklore) fairies that are somewhat mischievous
sandman: an elf in fairy stories who sprinkles sand in children's eyes to make them sleepy

Other hyponyms of hob include leprechaun.

hob (noun)	sandman (noun)
a shelf beside an open fire where something can be kept warm	an elf in fairy stories who sprinkles sand in children's eyes to make them sleepy
a hard steel edge tool used to cut gears
(folklore) a small grotesque supernatural creature that makes trouble for human beings
(folklore) fairies that are somewhat mischievous

hob (verb)	sandman (verb)
cut with a hob