premise

American  

[prem-is] / ˈprɛm ɪs /

noun

1. Logic. Also premiss. a proposition supporting or helping to support a conclusion.

   Synonyms:

   postulate, assumption

2. premises,

   1. a tract of land including its buildings.

   2. a building together with its grounds or other appurtenances.

   3. the property forming the subject of a conveyance or bequest.

3. Law.

   1. a basis, stated or assumed, on which reasoning proceeds.

   2. an earlier statement in a document.

   3. (in a bill in equity) the statement of facts upon which the complaint is based.

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verb (used with object)

premised, premising

1. to set forth beforehand, as by way of introduction or explanation.

2. to assume, either explicitly or implicitly, (a proposition) as a premise for a conclusion.

   Synonyms:

   hypothesize, postulate

verb (used without object)

premised, premising

1. to state or assume a premise.

premise British  

noun

1. Also: premiss.  logic a statement that is assumed to be true for the purpose of an argument from which a conclusion is drawn

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verb

1. (when tr, may take a clause as object) to state or assume (a proposition) as a premise in an argument, theory, etc

Other Word Forms

• repremise
  verb

Etymology

Origin of premise

First recorded in 1325–75; Middle English premiss, from Medieval Latin praemissa, noun use of feminine of Latin praemissus, past participle of praemittere “to send before,” equivalent to prae- “before, in front, ahead,” + mittere “to send”; see pre-

Explanation

A premise is what forms the basis of a theory or a plot. When you called 911 on the guy in your back yard, it was on the premise that he was a thief and not the meter-reader. In logic, the premise is the basic statement upon whose truth an argument is based. Criticize alternative theories by demonstrating their false premises. In a more general sense, it's a basic assertion. On the premise that people are generally good, you keep your doors unlocked. Premise is also used more loosely for the starting point for a plot. A movie's premise could be that two people trapped on a desert island will inevitably fall in love.

Example Sentences

The premise started off with somebody watching news in a diner or a small restaurant.

From Los Angeles Times • May 17, 2026

That's the premise of 1536, the Tudor-set play that has arrived in London's West End with backing from Hollywood star Margot Robbie.

From BBC • May 13, 2026

The underlying premise is the same: cleanliness as virtue, mess as failure.

From Salon • May 5, 2026

Now, of course, that’s a ridiculous premise because it suggests that people only come to the president, he never goes anywhere else, that he should be sequestered in this fortress.

From Slate • May 4, 2026

Remember, the main premise of this course is that a better understanding of where the basics come from will lead to better and faster comprehension of more complex ideas.

From "Understanding Basic Music Theory" by Catherine Schmidt-Jones and Russel Jones

Related Words

• assertion
• assumption
• basis
• ground
• presumption
• proposition
• thesis