noun

endeavour

effort, attempt, undertaking

It was a difficult endeavour.

It was a difficult endeavor.

Please make every endeavour to arrive on time.

Please make every endeavor to arrive on time.

a difficult/great ((endeavor)) It was a difficult endeavor.

make every ((endeavor)) to do sth. Please make every endeavor to arrive on time.

Synonyms: effort, attempt, undertaking, venture

From Old French 'en devoir', meaning 'in duty'. The idea of doing something as one's duty, hence making a serious effort.

Note the American English spelling is 'endeavor', while British English uses 'endeavour'. Think of it as a formal word for 'a big try'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.