The term sixth sense is often used to describe a supposed ability to percieve things beyond the five traditional senses of sight, hearing, taste, touch and smell, it's something close to Intuition or some psychic abilities, altho there is no scientific proof to support The existence of a literal "sixth sense", however it is as important as the other physical senses you see

Intuition which is often referred to as a sixth sense is believed to be a complex cognitive process that involves subconscious information processing and pattern recognition, sometimes it can seem like a feeling of gut or a sense of knowing without conscious reasoning, it's not a supernatural ability but rather a product of our brains processing information rapidly and drawing upon past experiences and knowledge

In a more broader context the idea of a sixth sense is often used in a metaphorical or colloquial sense to describe an intuition or other nontraditional sensory experience, meanwhile there is no scientific evidence to support the existence of a supernatural sixth semse that goes beyond the ordinary five sense

Let's step this down a little bit, i feel this is were a lot of people get their act of genius form or becoming a prodigy In certain Area, they become that good because they have been able to fine tune, their sixth sense so well that in split second they can percieve what to do and how to do them twice as fast as a normal human being could.

To an ordinary layman understanding the sixth sense is that ability to be able to percieve, understand a thing with a fusion of all or some of the physical senses, it's like a chef who's been able to interprete the taste smell and sight of food he prepares, know what to do, how to manipulate the ingredients to give him certain taste, flavour and smell that would be appealing to him.

Its like a musician whose been playing the instrument for so long he can tell were a slightest thing goes wrong, can correct it by knowing which note or Instrument or loob or something that would create a perfect harmony, to blend it all together, even when it seems perfect to everyone els, yet he notice something isn't right...it just have to be something beyond the normal interpretation of sound.

Its a drummer whose so good with the kit he or she can so manipulate and twist the strokes to give him a desired rythem, or a footballer or an athlete who has mastered the art of the game, literally In whatever field of endeavour to be a little bit more beyond the normal it takes the art of mastering the sixth sense to stand out