to do what you promised or agreed to dousually negative
He was accused of failing to deliver on his promise to make life better for the people.
phrasedeliver on deliver on a promise/agreement etcformal to do something that you promised or agreed officially to do: Ministers have been attacked for failing to deliver on promises made three years ago.
deliver on (something)
To fulfill an obligation, such as keeping a promise or paying a debt. You better deliver on all the things you said you would do, or the client is not going to be happy.Trust me, I always deliver on my promises to pay my debts, OK?
deliver on
v.
To do something one has promised or is expected to do: The contractor delivered on his promises to get the work done by Friday. Our office manager delivers on everything she says she will do.