need to know

Clearance required first

Need to know describes information shared only with those who require it for a specific purpose.

The phrase comes from military and intelligence contexts where classified material is restricted: even with proper clearance, you don't get access unless you need to know.

More broadly, it suggests deliberate limitation of information: That's on a need-to-know basis, and you don't need to know.

Opposites
information access principle

need to knowpublic

Available to all

open access · full disclosure · public information · transparent · open

Family

need, needs, needed, needing, needy, needful, needless, needlessly, neediness

Familiarity
Top 50,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G