in memory of somebody | to the memory of somebodyidiomPart ofmemoryin memory of somebody | to the memory of somebodyin memory of somebody | to the memory of somebody — idiomidiom1. Done to show respect for someone who has died and help people remember them.1.idiomDefinitionDone to show respect for someone who has died and help people remember them.ExampleThey planted a tree in memory of their teacher.The library was built to the memory of the mayor.