Strictly speaking clairvoyance is the paranormal ability to obtain information about an object or an event without the use of the known senses. However, the term in general usage is used as an umbrella term to refer to many psychic gifts such as telepathy, mediumship, second sight, prophetic visions and psychic dreams. Clairvoyance literally means 'clear seeing' so is often used to refer to visionary psychic experiences. For example a medium will describe the pictures he sees given to him by a spirit as clairvoyance. The words he may 'hear' from spirits - such as names - come from clairaudience (clear hearing) and the sensations - such as bodily ailments at the time of the spirits death - are described as clairsentience (clear sensing).