grind

noun

1.
an insignificant student who is ridiculed as being affected or boringly studious
spod dweeb nerd swot wonk
Derived from:
grind
2.
the grade of particle fineness to which a substance is ground
3.
hard monotonous routine work
dreich donkeywork drudgery plodding
Derived from:
grind
4.
the act of grinding to a powder or dust
mill pulverisation pulverization
Derived from:
grind