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

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 Austin Primary and BASIS Austin are tuition-free public charter schools serving grades K–8 for the 2025–26 school year. Our upper school is expanding by one grade level each year, so your child …

Jan 20, 2026 · (topology) A collection of subsets ("basis elements") of a set, such that this collection covers the set, and for any two basis elements which both contain an element of the set, there is a …

Basis definition: A foundation upon which something rests.

Basis is the underlying reason or assumption. The basis of a dictionary is that people are curious to learn the meanings of new words. You are interested, right?

The basis of something is its starting point or an important part of it from which it can be further developed.

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