Definition of Endeavor: Endeavor (noun/verb): An attempt to achieve a goal; to try hard to do or achieve something. Synonyms: effort, attempt, venture, undertaking Antonyms: idleness, inactivity, neglect, indifference Memory Tip: Think of “endeavor” as putting your heart into something challenging, whether it’s a project, goal, or dream. Conversation and Short Story Examples Here is…