grind vs toil

grind and toil both are nouns.

Word	Noun	Adjective	Verb	Adverb
grind	Yes	No	Yes	No
toil	Yes	No	Yes	No

As nouns, toil is a hypernym of grind; that is, toil is a word with a broader meaning than grind:

Other hypernyms of grind include labor, labour.

As verbs, grind and toil are synonyms defined as:

Other synonyms of grind include dig, drudge, fag, labor, labour, moil, travail.

grind (noun)	toil (noun)
the act of grinding to a powder or dust	productive work (especially physical work done for wages)
hard monotonous routine work
the grade of particle fineness to which a substance is ground
an insignificant student who is ridiculed as being affected or boringly studious

grind (verb)	toil (verb)
reduce to small pieces or particles by pounding or abrading	work hard
make a grating or grinding sound by rubbing together
press or grind with a crushing noise
shape or form by grinding
created by grinding
dance by rotating the pelvis in an erotically suggestive way, often while in contact with one's partner such that the dancers' legs are interlaced
work hard