(morpheme) 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).
(morpheme, proscribed, sometimes) Multiplying the unit to which it is attached by 2³⁰ or 1,073,741,824.
(morpheme, slang) Augmenting an adjective; intensely, extremely, or to an exceptionally high degree.
(Internet, morpheme) Used to augment nouns; denoting an invididual who is a paragon of something.
Pronounced as (IPA)
/ˈɡɪɡ.ə/
Etymology
From Ancient Greek γίγας (gígas, “giant”); cognate to giant.