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

せん状骨[senjoukotsu] scaphoid bone (in wrist near thumb)
遺骨[ikotsu] remains
化骨[kakotsu] ossification
会厭軟骨[eennankotsu] epiglottis
がい骨[gaikotsu] skeleton

雁骨[kariganebone] scapula
気骨[kikotsu] (moral) backbone
侠骨[kyoukotsu] chivalrous spirit
胸骨[kyoukotsu] breastbone
筋骨[kinkotsu] muscles (sinews) and bones