: the bottom of something considered as its foundation. Fruit juice constitutes the basis of jelly. He is on a first-name basis with his customers.

BASIS definition: 1. the most important facts, ideas, etc. from which something is developed: 2. a way or method of…. Learn more.

BASIS meaning: 1 : something (such as an idea or set of ideas) from which another thing develops or can develop usually singular; 2 : a reason for doing something

1. a bottom or base; the part on which something stands or rests. 2. anything upon which something is based; a fundamental principle. 3. the principal constituent; fundamental ingredient.

a basic fact, amount, standard, etc., used in making computations, reaching conclusions, or the like: The nurse is paid on an hourly basis. He was chosen on the basis of his college grades.

Discover everything about the word "BASIS" in English: meanings, translations, synonyms, pronunciations, examples, and grammar insights - all in one comprehensive guide.

Basis definition: A foundation upon which something rests.

basis noun [C] (DEVELOPMENT) a situation, fact, or idea from which something can develop:

4 days ago · A basis point equals 0.01% and is used to track changes in interest rates. Learn how basis points can impact monthly mortgage payments and the total cost of a loan.

Dec 9, 2025 · Cost basis is the asset’s purchase price, including fees and taxes, or its fair market value when inherited. It determines taxable gains or losses upon sale.