Intuiting something instinctively means to have a natural understanding of it without having to think about it. The term 'know instinctively' is often used to describe a person's ability to understand something without having to be taught or learn it. The crossword solution for this term is INTUIT, which is a six-letter word meaning to know or understand something without conscious reasoning. This term is often used to describe a person's ability to understand something without having to be taught or learn it.