gigaword /ˈɡɪɡəˌwɜːrd/ noun1 •A unit of storage or capacity equal to (or 2³⁰ = 1,073,741,824) words. It is given the "giga" prefix because of the relative proximity of this value to 10⁹.It has been calculated that a 100 ps pulse width would be short enough for a 1-Gigaword/second, 6 bit converter and … — 1977 formsgigawords