/ (ˈdʒɪljən) /
British (no longer in technical use) one thousand millionUS and Canadian equivalent: billion
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Word Origin for gillion
C20: from g (iga-) + (m) illion
Words nearby gillion
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012