staple
CEFR: C1
A basic, indispensable commodity or standard consumer product that is purchased routinely in large, regular quantities (e.g. 'staple food').
Synonyms
- necessity
- mainstay
- essential commodity
Common Collocations
- staple diet
- staple crop
- staple product
Example Sentence
Dairy products and whole grains constitute staple items in household grocery expenditure.