Definition of on your mark
- On your mark, get set, go!
: a boundary land
: a conspicuous object serving as a guide for travelers
: something (such as a line, notch, or fixed object) designed to record position
: to fix or trace out the bounds or limits of
: to plot the course of : chart
: to set apart by or as if by a line or boundary
: any of various old European units of weight used especially for gold and silver
: a unit of value:
: an old English unit equal to 13s 4d
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