C9
Translingual edit
Etymology edit
Specified in ISO 269.
Symbol edit
C9
- (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 edit
Chinese edit
Etymology edit
From 師奶/师奶 (si1 naai5-1), which is near homophonous to English C nine.
Pronunciation edit
Noun edit
C9
- (Hong Kong Cantonese, Internet slang) Alternative form of 師奶/师奶 (si1 naai5-1)