Definition: The Word "Gmfdn" appears to be a typo in some languages, but as an English word it's generally considered unrecognizable without further context. Definition: - Gmfdn: A term used by Jews to describe a man who had committed a great sin or crime. - Gmddfn1: This term is often seen in the Hebrew Bible and other texts from the Old Testament, used to refer to an individual who committed a specific type of crime. It's typically described as someone who was involved in "the greatest sin" - committing murder.