(n,vs) affirmation
confirmation
validation
(P)
(n) verifier
identifier
confirmor
confirming party
(n) certificate
(n) (proof of) confirmation
(n,vs) reaffirmation
reconfirmation
revalidation
(n,adj-f) unconfirmed
unidentified
(n) confirmation required
(n) (comp) response confirmation
(exp) after checking
after verification
(n) (comp) validation test
(n) machine-validation
(n) double check
(n) ID
person's identity
checking background
(n) (comp) (data) authentication
(n) letter of intent
(n) sale confirmation
(n) unconfirmed information
(n) mysterious and unconfirmed animals (e.g. chupacabra, etc.)
(n) (comp) validation (test)
(n) unidentified flying object
UFO