To supervise or manage a task, project, or group of people to ensure that it is done correctly. She was hired to oversee the construction of the new office building.
To watch over and direct the work of others, ensuring compliance with standards or regulations. The manager will oversee the implementation of the new safety protocols.
(archaic) To overlook or fail to notice; to miss through inattention. In his rush to publish, the editor oversaw several glaring mistakes.