The counter 8本 is used for counting: 8 bottles/pencils (long/thin objects) (Category: 本 (hon) - Long/thin objects, JLPT N4). 八 (hachi) contracts with 本 (hon) to form 'happon' (or occasionally regular 'hachihon', but 'happon' is standard).
Context Example
鉛筆を8本ください。
Enpitsu o happon kudasai.
Eight pencils, please.
Which counter represents "8 bottles/pencils (long/thin objects)"?
Correct! 🎉
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