on the button Meaning, Definition & Usage
- 
       adjective satellite being precise with regard to a prescribed or specified criterion
       
       
 on the nose.
 - his guess was on the nose
- the prediction for snow was right on the button
 
- 
       adverb just as it should be
       
       
 on the nose; on the dot; exactly; precisely.
 - `Precisely, my lord,' he said