giga
giga — 字首
1. a prefix placed before a unit of measurement (such as watt, byte, or hertz) to m
十億
置於單位前表示十億倍
a prefix placed before a unit of measurement (such as watt, byte, or hertz) to make it mean one billion (1,000,000,000) times the original amount
Otis downloaded a game that needs over eighty gigabytes of free space.
Otis 下載了一款遊戲，需要超過 80 GB 的儲存空間。
giga + byte: unit of digital storage
Zuri's new laptop connects to Wi-Fi at speeds of several gigabits per second.
Zuri 的新筆電能以每秒數十億位元（Gbps）的速度連接 Wi-Fi。
A large offshore wind farm near Taiwan can generate two gigawatts of electricity.
台灣近海的一座大型離岸風力發電廠可產生 2 GW 的電力。
Modern smartphones use processors that operate at speeds above two gigahertz.
現代智慧型手機使用的處理器，運作速度超過二十億赫茲（GHz）。
The data centre stores over five hundred gigabytes of scientific research.
該資料中心儲存了超過 500 GB 的科學研究資料。
- billion
the equivalent numeric value (e.g. a billion watts vs. a gigawatt)
文法句型
giga + [unit of measurement]
用法筆記
Commonly attached to units in computing (byte, bit, hertz) and energy (watt). The binary computing meaning (2^30 = 1,073,741,824) exists for memory measurements but is less common in everyday use.
常見錯誤
giga — 構詞成分
1. the number 10^9 (1,000,000,000, or one billion), used as a multiplier in scienti
吉咖
十的九次方，即十億
the number 10^9 (1,000,000,000, or one billion), used as a multiplier in scientific and technical notation
Naoko's physics textbook explained that giga equals ten to the ninth power.
Naoko 的物理課本解釋，吉咖等於十的九次方。
giga = 10^9 in scientific notation
Karim wrote 'giga = 1,000,000,000' on the whiteboard during science class.
Karim 在自然課的白板上寫下「吉咖 = 1000000000」。
The combining form giga helps scientists describe enormous quantities without writing many zeros.
結合詞形「吉咖」能幫助科學家描述極大的數量，而不用寫出一長串的零。
Camille learned that giga, meaning one billion, is part of the International System of Units.
Camille 學到吉咖這個詞代表十億，是國際單位制的一部分。
- one billion
the plain-English equivalent of the giga factor
- thousand million
an alternative way of expressing 10^9, more common in British English
文法句型
giga = 10^9
用法筆記
This sense treats giga as the mathematical factor itself rather than as a prefix attached to a unit. It appears most often in science textbooks, lecture slides, and technical documentation describing the metric system.