basis meaning and definition

BASIS noun

Definition of basis (noun)

1. a relation that provides the foundation for something
   • "they were on a friendly footing"; "he worked on an interim basis"
   • synonyms: footing, ground
2. the fundamental assumptions from which something is begun or developed or calculated or explained
   • "the whole argument rested on a basis of conjecture"
   • synonyms: base, cornerstone, foundation, fundament, groundwork
3. the most important or necessary part of something
   • "the basis of this drink is orange juice"
   • synonyms: base