[make] a promise
1
to commit to doing something in the future
- She decided to make a promise to her children that she would always be there for them.
- The politician made a promise to improve healthcare access if elected.
- While they were discussing their future together, she made a promise to always be there for him.
- He made a promise to take her out for dinner last weekend.
- They have made a promise to donate a portion of their profits to charity every year.