千兆 qiānzhào giga- Definitions Defs Origin Strokes Stroke Words Sentences Sents qiānzhào giga- 千 qiān numeral thousand thousand; the number 1,000; the financial form is 仟 qiān兆 zhào mega- (computing, metric) a prefix meaning one million (10^6)qiānzhào tera- 千 qiān numeral thousand thousand; the number 1,000; the financial form is 仟 qiān兆 zhào trillion a large number; in modern usage, typically a million (10^6) in Mainland China scientific contexts and a trillion (10^12) in Taiwan; historically used for various scales including billion