Work or study hard.
More example sentences
- He has continued to grind away at the project to which he dedicated himself more than a decade ago.
- You just have to keep grinding away and hope that it happens for you.
- It's more flexible, it's clean, your're scheduled to meet your clients and left alone with them, instead of grinding away to meet quotas and schedules with bosses looking over your shoulder.
Definition of grind away in:
- The British & World English dictionary