noun
You have my promise that the book will be completed by the deadline. She broke her promise to marry him. Unlike a contract, a promise does not imply a mutual commitment
This first novel shows a lot of promise. There is little promise that compensation will be paid to the victims by the government
verb
Harold promised to do what cannot be done. We were promised a free ride on the roundabout. She promises she will repay the loan promptly. Make him pay for the damage as he promised
Though the economic situation promised to improve, many were disappointed that it took so long