gremlin vs hob

gremlin and hob both are nouns.

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

As nouns, gremlin and hob are synonyms defined as:

Other synonyms of gremlin include brownie, elf, imp, pixie, pixy.

gremlin (noun)	hob (noun)
(folklore) fairies that are somewhat mischievous	a shelf beside an open fire where something can be kept warm
	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

gremlin (verb)	hob (verb)
	cut with a hob