The term 'sixth sense' is used to refer to a range of phenomena that are not explained by the five senses. The crossword solutions for this term include CLAIRVOYANCE (12 letters), HUNCH (5 letters), INTUITION (9 letters), ESP (3 letters), FORESIGHT (9 letters), PREMONITION (11 letters), mental telepathy (15 letters), and extrasensory perception (22 letters). CLAIRVOYANCE is the ability to perceive events in the future or distant places, while a HUNCH is an instinctive feeling about something. INTUITION is the ability to understand something without conscious reasoning, and ESP is the ability to acquire information without using the five senses. FORESIGHT is the ability to predict the future, PREMONITION is a feeling that something is going to happen, mental telepathy is the ability to communicate with another person's mind, and extrasensory perception is the ability to perceive things beyond the five senses.