Currently, female ninja is generally called "Kunoichi" (the origin of this code name was a Japanese character "女" meaning woman, and it is considered that this character was broken down into three characters "く (ku)", "ノ (no)" and "一 (ichi")).
現在女性の忍者のことを「くノ一（くのいち）」（“女”という文字を「く」「ノ」「一」と三文字に解体し呼称するようになった隠語表現）とする表現が一般的である。