a piece of music that is played at the end of a religious service, usually on the organ;
e.g. The children were restless through the postlude since they knew they would be allowed to leave soon.
(noun)
broadly, something that serves as a conclusion, especially a special section at the end of a piece of speech or writing or the phase at the end of a particular period of time;
e.g. He gave a beautiful postlude to his speech, making many in the audience cry.