C9

Translingual

The relative size of C9 paper makes it half the size of C8.

Etymology

Specified in ISO 269.

Symbol

C9

1. (international standards) ISO 269 standard paper size of 40 mm × 57 mm (1.57 in × 2.24 in), with a surface area of 22.8 cm² (3.53 sq in).

See also

ISO 216/269 paper sizes

A series: 4A0 2A0 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 B series: B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 C series: C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 C10

Chinese

Etymology

From 師奶／师奶 (si¹ naai^5-1), which is near homophonous to English C nine.

Pronunciation

• Cantonese (Jyutping): si¹ naai¹

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• Cantonese
  • (Standard Cantonese, Guangzhou–Hong Kong)⁺
    • Jyutping: si¹ naai¹
    • Yale: sī nāai
    • Cantonese Pinyin: si¹ naai¹
    • Guangdong Romanization: xi¹ nai¹
    • Sinological IPA ^(key): /siː⁵⁵ naːi̯⁵⁵/

Noun

C9

1. (Hong Kong Cantonese, Internet slang) Alternative form of 師奶／师奶 (si¹ naai^5-1)

Coordinate terms

• C6