⑨

⑨

⑨ U+2468, ⑨ CIRCLED DIGIT NINE ← ⑧ [U+2467] Enclosed Alphanumerics ⑩ → [U+2469]

➈ U+2788, ➈ DINGBAT CIRCLED SANS-SERIF DIGIT NINE ← ➇ [U+2787] Dingbats ➉ → [U+2789]

Translingual

Symbol

⑨

1. circled digit 9
2. (astronomy) The asteroid 9 Metis.

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Japanese

Symbol

⑨(まるきゅう) • (marukyū) 

1. The number 9 enclosed in a circle, used in enumerating lists.

Etymology 2

A diagram of gameplay in the manual of Phantasmagoria of Flower View labelled Cirno with the legend "⑨" and the key "9. Idiot".

Noun

⑨(まるきゅう) or ⑨(ばか) or ⑨(きゅう) • (marukyū or baka or kyū) 

1. (fandom slang) The Touhou character Cirno, known affectionately as an idiot.
   • 2008, bit (lyrics), “⑨destiny ～ ずっとチルノのターン”, in Rebirth, performed by Silver Forest:

     ⑨(まるきゅう)って言(い)うな～

     Marukyū tte iu na~

     Don't call me nineball~