滝壺[takitsubo] basin under a waterfall
便壺[bentsubo] night-soil vault
火消壺[hikeshitsubo] charcoal extinguisher
骨壺[kotsutsubo] funerary urn
金壺眼[kanatsubomanako] goggle-eyes

茶壺[chatsubo] tea urn
消し壺[keshitsubo] (jar used as a) charcoal extinguisher
蛸壺[takotsubo] octopus pot
痰壺[tantsubo] spittoon

去痰[kyotan] expectoration
喀痰[kakutan] expectoration
血痰[kettan] bloody phlegm
痰壷[tantsubo] spittoon

検痰[kentan] sputum test
喀痰検査[kakutankensa] examination of somebody's sputum
去痰薬[kyotanyaku] expectorant
痰唾[tantsuba] sputum