Meaning of “giga-” in the English Dictionary

british dictionary

"giga-" in British English

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giga-prefix

uk /ɡɪɡ.ə-/ us /ɡɪɡ.ə-/

1,000,000,000 times the stated unit:

gigavolt
gigahertz
gigawatt

(Definition of “giga-” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)