草薙の剣、草薙剣
くさなぎのつるぎ
kusanaginotsurugi
JMdict entry #2243670
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noun (common) (futsuumeishi)
Kusanagi no Tsurugi (alternate name for Ama-no-Murakumo no Tsurugi; the sword of the Imperial regalia); grass-mowing sword
see: 天叢雲剣