S: (n) retroversion (translation back into the original language) "the teacher translated Latin texts into English which he gave to his students for retroversion"
S: (n) record (anything (such as a document or a phonograph record or a photograph) providing permanent evidence of or information about past events) "the film provided a valuable record of stage techniques"
S: (n) evidence (an indication that makes something evident) "his trembling was evidence of his fear"
S: (n) indication, indicant (something that serves to indicate or suggest) "an indication of foul play"; "indications of strain"; "symptoms are the prime indicants of disease"
S: (n) communication (something that is communicated by or to or between people or groups)