endeavor
/ɪnˈdɛvə/noun
A serious, determined effort to achieve something.
Example sentences
- “Learning a new language as an adult is a challenging endeavor.”
- “The museum thanked everyone who supported its fundraising endeavors.”
Formal, and often ironic when applied to small things. The British spelling is 'endeavour'. As a verb, 'endeavor to' means to try earnestly.