giga-
/ˈɡɪɡ.ə/US/ˈɡɪɡ.ə/
giga- prefix: in the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁹ (short scale billion or long scale milliard).
Prefix
giga-
- In the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁹ (short scale billion or long scale milliard).
- giga- + watt → gigawatt ("one billion watts")
- Antonyms:
- nano-
- Multiplying the unit to which it is attached by 2³⁰ or 1,073,741,824.
- Synonyms:
- gibi-
- Augmenting an adjective; intensely, extremely, or to an exceptionally high degree.
- Wow, I am giga-jealous right now.
- Used to augment nouns; denoting an invididual who is a paragon of something.
- giga- + Chad → gigachad
- giga- + Stacy → gigastacy
giga- meaning in Tamil and Vietnamese
giga- in Tamil
- கிகா
giga- in Vietnamese
- SI prefix
- gi-ga
Synonyms of giga-
Antonyms
Origin of giga-
From Ancient Greek γίγας (gígas, “giant”); cognate to giant.
Words formed from giga-
Questions about giga-
- What does giga- mean?
- Giga- means in the International System of Units and other metric systems of units, multiplying the unit to which it is attached by 10⁹ (short scale billion or long scale milliard).
- What is giga- in Tamil?
- Giga- in Tamil is கிகா. See Giga- meaning in Tamil.
- What part of speech is giga-?
- Giga- is a prefix.
- How do you pronounce giga-?
- Giga- is pronounced /ˈɡɪɡ.ə/ (UK).
Words near giga- in the dictionary
Source and license
Adapted from Wiktionary: giga- (page history and authors); giga- (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
Last updated:
Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-giga-.wav.
Cite this entry: “giga-.” Word.ws, https://word.ws/giga-. Based on Wiktionary, CC BY-SA 4.0.