Meaning: a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
meaning of the word
estimate, gauge, approximate, guess, judge
Meaning: judge tentatively or form an estimate of (quantities or time); "I estimate this chicken to weigh three pounds"
Slowly the needle of the gauge crept up.
I tried to gauge the distance; it was not over two miles from here.
He reached for the helmet, but the man shook his head, pointing to the oxygen gauge.
Occasionally, Brown glanced at the steam gauge; then the two engineers would exchange glances.
If there were any gauge by which to measure love, I know not whose would be found the greatest."
But there is one city on the globe not nearly as large as Des Moines, not at all beautiful, its people neither cultured nor learned, has no factories and one narrow gauge railway takes care of most of its commerce, and yet it is by far the most famous city of all time.