Common Words by Reading

さや
97.2%
scabbard ②cap (on pen, brush, etc.) ③margin (between two prices) ④enclosure
to slip out of one's scabbard (of swords)
rivalry in love ②quarrel over something trivial ③quarrel between two samurai due to an (accidental) clash of sheaths while crossing paths
tip of a scabbard
red-lacquered sword sheath
arbitrage ②brokerage
ショウ
2.8%
inflammation of a tendon (sheath)
myelin sheath (around the axon of a neuron)
myelin sheath (around the axon of a neuron)