叢雲剣むらくものつるぎMurakumo no Tsurugi (alternate name for Ama-no-Murakumo no Tsurugi; the sword of the Imperial regalia)
草薙の剣くさなぎのつるぎgrass-mowing swordKusanagi no Tsurugi (alternate name for Ama-no-Murakumo no Tsurugi; the sword of the Imperial regalia)