naginata; polearm with a curved single-edged blade (similar to a glaive); naginata; martial art of wielding the naginata
Kusanagi no Tsurugi (alternate name for Ama-no-Murakumo no Tsurugi; the sword of the Imperial regalia); grass-mowing sword
petrel (esp. petrels of family Procellariidae)
streaked shearwater (species of seabird, Calonectris leucomelas)