The counter 3軒 is used for counting: 3 houses / buildings (Category: 軒 (ken/gen) - Houses/Buildings, JLPT N3). 三 (san) triggers rendaku (voicing) on the counter, changing 軒 (ken) to 'gen'.
Context Example
スーパーが3軒並んでいます。
Suupaa ga sangen narande imasu.
Three supermarkets are lined up.
Which counter represents "3 houses / buildings"?
Correct! 🎉
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