nSemantic particles used when counting N’s
n-bai (time), -bun (part), -chaku (clothing), -choo (beancurd), -dai (vehicle), -fuku (puff, cup), -hai (cup), -hatsu (ammunition round), -hen (volume, chapter, …), -hiki (small animal), -hon (cylindrical object), -ma (room), -shu (poem), -wa (bird), -zen (bowl of rice)
nUsually based on salient properties of the item counted
nWide variation crosslinguistically
nEnglish has “collective nouns”