mailer mailed • mailguard · · · Info · Definitions · Characters · · mailer · · Text Latin · · Script 6 · · Length Definitions · · · (noun) United States writer (born in 1923). Synonyms: Mailer, Norman Mailer. · · Noun Definition 1 (noun) a person who mails something. · · Noun Definition 2 (noun) an advertisement that is sent by mail. · · Noun Definition 3 (noun) a container for something to be mailed. · · Noun Definition 4 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D r latin small letter r U+0072