noun

• (logic) Any of the first propositions of a syllogism, from which the conclusion is deduced.
  "While the premises stand firm, 'tis impossible to shake the conclusion."
• (usually in the plural, law) Matters previously stated or set forth; especially, that part in the beginning of a deed, the office of which is to express the grantor and grantee, and the land or thing granted or conveyed, and all that precedes the habendum; the thing demised or granted.
• (usually in the plural) A piece of real estate; a building and its adjuncts.
  "trespass on another’s premises"
• (authorship) The fundamental concept that drives the plot of a film or other story.
  "In 1949, the simple premise of discovering ordinary people who have hidden, extraordinary talents came to prominence in the UK with Opportunity Knocks, which started out as a nationwide touring radio show, before moving onto TV in 1956."