BASIS definition: the bottom or base of anything; the part on which something stands or rests. See examples of basis used in a sentence.

: 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.

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.

Basis Look up Basis or basis in Wiktionary, the free dictionary. Basis is a term used in mathematics, finance, science, and other contexts to refer to foundational concepts, valuation measures, or …

Jan 5, 2026 · Explore the meaning of "basis" in finance, focusing on its tax implications and role in investment transaction. Learn how it affects capital gains and cost analysis.

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

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

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