The counter 1個 is used for counting: 1 small object (apple, box, egg, etc.) (Category: 個 (ko) - Small items, JLPT N5). 一 (ichi) contracts with 個 (ko) to form 'ikko' (double consonant sokuon sound change).
Context Example
リンゴを1個食べました。
Ringo o ikko tabemashita.
I ate one apple.
Which counter represents "1 small object (apple, box, egg, etc.)"?
Correct! 🎉
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