匕首

あいくち
ひしゅ
dagger
dirk

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あいくち【匕首】

a dagger [dirk, stiletto] without a guard.

●匕首で突き刺す stab sb with a dagger; plunge a dagger 《into sb's breast》.

●匕首を呑んでいる have a dagger concealed under one's clothes; 《文》 carry a dagger in one's bosom.