<p><strong>Verb</strong></p><ul><li>to exert oneself to do or effect something; make an effort; strive: We must constantly endeavor if we are to succeed.</li><li>to attempt; try: He endeavors to keep things neat in his apartment.</li><li>Archaic: to attempt to achieve or gain.</li></ul><p><strong>Noun</strong></p><ul><li>a strenuous effort; attempt.</li></ul>