v.

1. establish after a calculation, investigation, experiment, survey, or study;
   determine, find, find out
   
   • find the product of two numbers
   • The physicist who found the elusive particle won the Nobel Prize
2. be careful or certain to do something; make certain of something;
   see, check, insure, see to it, ensure, control, assure
   
   • He verified that the valves were closed
   • See that the curtains are closed
   • control the quality of the product
3. find out, learn, or determine with certainty, usually by making an inquiry or other effort;
   determine, check, find out, see, watch, learn
   
   • I want to see whether she speaks French
   • See whether it works
   • find out if he speaks Russian
   • Check whether the train leaves on time
4. learn or discover with certainty