acknowledgement, acknowledgment - a statement acknowledging something or someone; "she must have seen him but she gave no sign of acknowledgment"; "the preface contained an acknowledgment of those who had helped her"

vindication, defence, defense - the justification for some act or belief; "he offered a persuasive defense of the theory"

example, instance, illustration, representative - an item of information that is representative of a type; "this patient provides a typical example of the syndrome"; "there is an example on page 10"