Answer: privy

AnswerCrossword Clue
PRIVY

Secret

PRIVY

Involved in, with "to"

PRIVY

In on, with "to"

PRIVY
... to (in on)
PRIVY
Lav
PRIVYWhere you might go
PRIVYOuthouse
PRIVYSecretly aware.
PRIVYIn secret.
PRIVYCertain kind of council
PRIVYKind of council or seal
PRIVY... to (informed)
PRIVYKind of seal
PRIVYOutbuilding
PRIVYIn on something
PRIVYA party (to)
PRIVYSecret: arch.