cogent evidence, proof - any factual evidence that helps to establish the truth of something; "if you have any proof for what you say, now is the time to produce it"

bed check - a check that everyone is in bed by the time they should be

crosscheck - an instance of confirming something by considering information from several sources

odd-even check, parity check, redundant check - a system of checking for errors in computer functioning

checksum - a digit representing the sum of the digits in an instance of digital data; used to check whether errors have occurred in transmission or storage

info, information - a message received and understood

reenforcement, reinforcement - information that makes more forcible or convincing; "his gestures provided eloquent reinforcement for his complaints"

corroboration, documentation, certification - confirmation that some fact or statement is true

commendation, approval - a message expressing a favorable opinion; "words of approval seldom passed his lips"

agreement - the verbal act of agreeing

religious ceremony, religious ritual - a ceremony having religious meaning

sacrament - a formal religious act conferring a specific grace on those who receive it; the Protestant sacraments are baptism and the Lord's Supper; in the Roman Catholic Church and the Eastern Orthodox Church there are seven traditional rites accepted as instituted by Jesus: baptism and confirmation and Holy Eucharist and penance and holy orders and matrimony and extreme unction