noun (common) (futsuumeishi) word usually written using kana alone Chinese soft-shelled turtle (Pelodiscus sinensis);soft-shelled turtle (Trionychidae)

noun (common) (futsuumeishi) only applies to すっぽん trap door located on the walkway in a kabuki theatre

noun (common) (futsuumeishi) only applies to すっぽん bilge pump (used on traditional Japanese ships)

noun (common) (futsuumeishi) plunger (for unblocking sinks, etc.)

expressions (phrasesnoun (common) (futsuumeishi) idiomatic expression two things that are superficially similar but completely different;night and day;chalk and cheese;the Moon and a turtle