ground-up

[param83]

Hi
Whats the meaning of the phrase ground-up.

[Casiopea]

grind up, (past) ground up; adjective, ground-up
1. to reduce something to small particles or powder by crushing it.
2. to sharpen or smooth something with an abrasive disc or tool.
3. to rub together or move gratingly.

Source: The Little Oxford English Dictionary

Welcome, param.

[Ouisch]

Depending upon the context, we can also say "from the ground up," which means to start from the very basics or beginning.