- 1[countable] a statement that tells someone that you will definitely do or not do something to make/keep/break a promise promise (to do something) She kept her promise to visit her aunt regularly. promise (of something) The government failed to keep its promise of lower taxes. promise (that…) Do I have your promise that you won't tell anyone about this? You haven't gone back on your promise, have you? He simply broke every single promise he ever made me.
- 2[uncountable] a sign that someone or something will be successful synonym potential Her work shows great promise. He failed to fulfill his early promise. Their future was full of promise.
- 3 [uncountable, singular] promise of something a sign, or a reason to hope, that something may happen, especially something good The day dawned bright and clear, with the promise of warm, sunny weather. The dog approached, attracted by the promise of food.