鎬

しのぎ【鎬】

¶～を削る好勝負だった

They had a fierce competition. ; It was diamond cut diamond. 《やや略式》腕の良い者同士の好勝負だった.

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しのぎ【鎬】

the ridges on the sides of a sword blade.

●しのぎを削る compete viciously [ruthlessly] 《with…》; vie 《with…to do [for…]》

・航空各社はいま顧客獲得でしのぎを削っている. There is cutthroat competition among the airlines for customers. | Airlines are competing ruthlessly for customers.

・ステージ終盤, その両チームが首位争いのしのぎを削っている. In the closing stages, both teams are vying for the lead.