gillion

• gi(ga-) + -illion, the ending of million, billion, etc.

• enPR: gĭl'yən, jĭl'yən; IPA^(key): /ˈɡɪljən/, /ˈdʒɪljən/

  Note: the pronunciation with either a hard or soft g is meant to correspond to how the speaker pronounces the initial g of giga-

• Rhymes: -ɪljən

gillion

1. (rare) A thousand million, proposed as an alternative to the (now little used) British milliard and the (ambiguous, in the UK, and unclear on an international scale) US billion.

gillion (plural gillions)

1. (slang, hyperbolic) An unspecified large number (of).

• See also Thesaurus:zillion.