Definition of keep one's nose to the grindstone
- You'll do well at school if you just keep your nose to the grindstone.
: to retain in one's possession or power
: to refrain from granting, giving, or allowing
: to have in control
: the means or provisions by which one is kept
: one that keeps or protects: such as
: fortress, castle
: the part of the face that bears the nostrils and covers the anterior part of the nasal cavity
: the anterior part of the head at the top or end of the muzzle : snout, proboscis
: the sense of smell : olfaction
: to detect by or as if by smell : scent
: to push or move with the nose
: to move (something, such as a vehicle) ahead slowly or cautiously
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