grinding

1. (countable, uncountable)The action of grinding together or crushing into small particles; the sound of this action.

   Ominous creakings and grindings came from the innards of the machine.

   a harsh and strident sound (as of the grinding of gears)

2. (countable, uncountable)The action of grinding a workpiece to change its size, shape, and surface finish.

   Grinding sometimes involves tight tolerances on the order of a few microns.

3. (countable, uncountable)A form of dance in which two people rub their bodies together.

   No grinding is allowed on the dance floor at the junior prom: it isn't age-appropriate.

4. (countable, uncountable)Repeatedly performing the same quest or similar in-game activity in order to amass points or wealth.

   I really hate the grinding to get that 1% chance item.

   grinden

5. (countable, informal, uncountable)The act of doing the daily grind.

   A: Hey Bob, how's it goin? B: Meh, I'm tired of grinding, man.

regular