Keep nose to grindstone and Throw down

Throw down and keep nose to grindstone are semantically related. In some cases you can use "Throw down" instead a verb phrase "Keep nose to grindstone".

Throw down verb - To cause to fall intentionally or unintentionally.

Keep nose to grindstone and throw down are semantically related. Sometimes you can use "Keep nose to grindstone" instead a verb "Throw down".