giga-

gigabyte / (telecommunications, slang) usable amount of data transfer per month in gigabytes / gigahertz

caricature (satirical portrayal) / (rare) cartoon, comics

decoration

chip, break off a part / lack

negative potential form of 欠かす (kakasu) [godan]: indispensable, critical, essential

Christmas (Christian holiday)

Christmas cake / (figuratively, humorous) unmarried woman above the age of 25, seen as no longer desirable.

Christmas tree (a tree used during the Christmas holiday season)

Christmas present (present given or received at Christmas time)