endeavour

Noun

• earnest and conscientious activity intended to do or accomplish something
  • made an effort to cover all the reading material
    
  • wished him luck in his endeavor
    
  • she gave it a good try
    

• a purposeful or industrious undertaking (especially one that requires effort or boldness)
  • he had doubts about the whole enterprise
    

Verb

• attempt by employing effort
  • we endeavor to make our customers happy
    

Related words

• Synonyms: 
  attempt , effort , endeavor , try , enterprise , strive