1, 10. Try, attempt, endeavor, strive all mean to put forth an effort toward a specific end. Try is the most often used and most general term: to try to decipher a message; to try hard to succeed. Attempt, often interchangeable with try, sometimes suggests the possibility of failure and is often used in reference to more serious or important matters: to attempt to formulate a new theory of motion. Endeavor emphasizes serious and continued exertion of effort, sometimes aimed at dutiful or socially appropriate behavior: to endeavor to fulfill one's obligations. Strive, stresses persistent, vigorous, even strenuous effort, often in the face of obstacles: to strive to overcome a handicap.