attempt, effort, endeavor, endeavour, try - earnest and conscientious activity intended to do or accomplish something
Example:- made an effort to cover all the reading material
endeavor, endeavour, enterprise - a purposeful or industrious undertaking (especially one that requires effort or boldness)
Example:- he had doubts about the whole enterprise
endeavor, endeavour, strive - attempt by employing effort
Example:- we endeavor to make our customers happy