Meaning of STAPLE in English

STAPLE

n.

Function: adjective

Date: 1615

1 : used, needed, or enjoyed constantly usually by many individuals

2 : produced regularly or in large quantities < staple crops such as wheat and rice>

3 : PRINCIPAL , CHIEF

Merriam Webster Collegiate English Dictionary.      Merriam Webster - Энциклопедический словарь английского языка.