Endeavour

What is Endeavour ?

Endeavour is (noun) an attempt (formal.) All our endeavours to get the car to start were in vain. In spite of all his endeavours, he could not avoid bankruptcy. (verb) to try hard He endeavoured to contact her by phone and fax. (NOTE: [all senses] The US spelling is endeavor.)

 

source: Easier English, Student Dictionary Upper Intermediate Level