As a Noun: 1. The feeling that something is true or exists although you have no evidence or proof of it. English = intuition. As a Verb or Adjective: 1. To guess something by using your feelings, rather than your knowledge. English = sense. Formal English = intuit. 2. To be an idea or feeling that something is true or exists which you have without any evidence or proof of it, but just from your feelings. English = (be) intuitive.