Word

須磨琴

すまごと
single-stringed Japanese zither
Word

千載不磨

せんざいふま
still remaining after a thousand years; immortal
Word

雪だるま式

雪達磨式
ゆきだるましき
snowballing (phenomenon, effect)
Word

切磋琢磨し合う

せっさたくましあう
to work hard together; to be in a state of friendly rivalry
Word

水歯磨き

水歯磨
みずはみがき
mouthwash