C9

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

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Chinese

Pronunciation

• Cantonese (Jyutping): si¹ naai¹

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• Cantonese
  • (Standard Cantonese, Guangzhou)⁺
    • 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.