basis

basis
ba‧sis S2 W1 /ˈbeɪsəs, ˈbeɪsɪs/ noun (plural bases /-siːz/) [countable]1. the facts, ideas, or things from which something can be developed:
    Their claim had no basis in fact (=it was not true).
    basis of
    Bread forms the basis of their daily diet.
    basis for
    The video will provide a basis for class discussion.
2. on the basis of something because of a particular fact or situation:
    discrimination on the basis of sex
3. on a regular/daily/weekly etc basis every day, week etc:
    I’m saving money on a regular basis.
4. on a voluntary/part-time/temporary etc basis a system or agreement by which someone or something is voluntary etc:
    Nurses are employed on a full-time basis.
     

COLLOCATIONS

■ verbs
   ▪ form the basis of something This research will form the basis of a book.
   ▪ provide a basis for something The poem provided the basis for an interesting class discussion.
   ▪ become the basis of/for something Some of these ideas became the basis for the Parents’ Educational Union.
   ▪ serve as a basis for something The document will serve as a basis for negotiations.
   ▪ establish a basis (also lay a basis) (=create something from which something can be developed) The agreement established a sound basis for international commerce.
   ▪ have a basis Our constitution has a democratic basis.
   ▪ have no basis in fact (=be not true) Many of these rumours have no basis in fact.
■ adjectives
   ▪ a good basis Love and trust form a good basis for marriage.
   ▪ a sound/firm/solid basis Drama school may provide a sound basis for an acting career.
     

THESAURUS

   ▪ basis the facts, ideas, things etc from which something can be developed: His work will be used as a basis for future research.
   ▪ foundation the thing on which something is based, especially something important that continues for a long time: Their ideas were the foundation for the political system that exists in the UK today. | How can we provide a solid foundation for world peace?
   ▪ bedrock the most important thing that something depends on in order to be successful: Honesty is the bedrock of any healthy relationship. | Labour’s traditional bedrock of support is among the working classes.
   ▪ cornerstone the most important thing that something depends on in order to be successful, especially in business and politics: Confidence is the cornerstone of our business. | NATO remains a cornerstone of defence policy for Europe.