there was a time when 1 inch was the 'rule of thumb' probably 25mm now
rule of thumb measures
thumb nail, thumb tack, thumb screw, thumb print
My thumb, from the palm-thumb joint to the thumb-tip is 7.0 cm.
A ball of the thumb is the fleshy portion of the thumb opposite the nail, belonging to the first segment of the thumb.
its thumb mark meaning one print your thumb on soemthing and itl be caled a thumb mark or some one made a thumb mark that or surch thumb mark on google images.
The thumb is called a thumb instead of a finger because it is smaller than a finger. A thumb also has 2 joints and a finger has 3.
Your thumb is a lever because the joint that bends your thumb is a fulcrum.
I learned it was called a hitchhiker's thumb. its when your thumb is bent backward at the top.
thumb in Filipino: hinlalaki
He was as big as a my thumb.
tom thumb
That is the correct spelling of "thumb."