火山灰[kazanbai] volcanic ash
灰になる[haininaru] to be reduced to ashes
灰の水曜日[hainosuiyoubi] Ash Wednesday
灰押さえ[haiosae] ash leveler (use in a brazier)
灰押し[haioshi] ash leveler (use in a brazier)

灰殻[haigara] ashes
灰均し[hainarashi] ash leveler
灰皿[haizara] ashtray
灰受け[haiuke] ash pan

灰篩[haifurui] ash strainer
篩にかける[furuinikakeru] to sieve
篩い分ける[furuiwakeru] to sift
篩い落す[furuiotosu] to sift out
篩い[furui] sieve

エラトステネスの篩[eratosutenesunofurui] Eratosthenes' sieve
回転篩[kaitenburui] trommel
篩う[furuu] to sieve (flour)
篩骨[shikotsu] ethmoid bone (of the skull)
篩部[shibu] phloem