need-to-know
adjective /ˌniːd tə ˈnəʊ/
/ˌniːd tə ˈnəʊ/
Idioms Idioms
on a need-to-know basis
- with people being told only the things they need to know when they need to know them, and no more than that
- Information will be released strictly on a need-to-know basis.