As a Noun: 1. The capital city of the Northern Territory of Australia, called Darwin. Note: 1. You will notice are several signs for "Darwin" in this dictionary. Though all have been marked for use Australia wide, it has not been possible to get agreement on which one (if any) is actually preferred by the majority of deaf signers in the Northern Territory itself. Also, there may be significant differences between indigenous and non-indigenous groups. So if you are talking to someone from the Northern Territory try to follow their lead.