The counter 3匹 is used for counting: 3 small animals (dogs, cats, fish, etc.) (Category: 匹 (hiki) - Small animals, JLPT N5). 三 (san) triggers rendaku (voicing) on the counter, changing 匹 (hiki) to 'biki'.
Context Example
猫が3匹走っていきました。
Neko ga sanbiki hashitte ikimashita.
Three cats ran away.
Which counter represents "3 small animals (dogs, cats, fish, etc.)"?
Correct! 🎉
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