gauge in WordNet English dictionary

1. judge tentatively or form an estimate of (quantities or time)
   "I estimate this chicken to weigh three pounds"
   estimate  gauge  approximate  guess  judge 
   
2. measure precisely and against a standard
   "the wire is gauged"
   gauge 
   
3. adapt to a specified measurement
   "gauge the instruments"
   gauge 
   
4. mix in specific proportions
   "gauge plaster"
   gauge 
   
5. determine the capacity, volume, or contents of by measurement and calculation
   "gauge the wine barrels"
   gauge 
   
6. rub to a uniform size
   "gauge bricks"
   gauge 
   

1. diameter of a tube or gun barrel
   bore  gauge  caliber  calibre 
   
2. a measuring instrument for measuring and indicating a quantity such as the thickness of wire or the amount of rain etc.
   gauge  gage 
   
3. the distance between the rails of a railway or between the wheels of a train
   gauge 
   
4. the thickness of wire
   gauge 
   
5. accepted or approved instance or example of a quantity or quality against which others are judged or measured or compared
   gauge  standard of measurement