endeavor

/ɪnˈdɛvə/noun

A serious, determined effort to achieve something.

Example sentence

“Learning a new language as an adult is a challenging endeavor.”

Formal, and often ironic when applied to small things. The British spelling is 'endeavour'. As a verb, 'endeavor to' means to try earnestly.

Featured as word of the day on July 16, 2026.

Related words

endlessGoing on forever, or seeming to have no end.endearingTo make someone or something more loved, valued, or cherished.endorseIn heraldry, a narrow vertical stripe, a smaller version of the pale, usually shown in pairs on both sides of one.encyclopediaA wide-ranging reference work covering many areas of knowledge, produced in any format, not only as a set of books.enduranceThe ability to keep going through effort, pain, or difficulty for a long time; stamina.encryptionThe scrambling of information so that it can only be read by someone with the right key or password.