Grinding

Verb

1. Present participle of grind

Full definition of grinding

Noun

1. The action of grinding together or crushing into small particles.Ominous creakings and grindings came from the innards of the machine.
2. (dance) A form of dance in which two people rub their bodies together.
3. (online gaming) Repeatedly performing the same quest or similar in-game activity in order to amass points or wealth.

Adjective

1. Of or pertaining to the act or sound of grinding.The meeting came to a grinding halt when the two sides could not agree.