Home Help Word English Spanish French Russian German Italian Chinese (Trad.) Chinese (Simpl.) Portuguese Arabic Turkish Greek » Definition of " forfeiture " in English English Dictionary Results Forfeiture The act of forfeiting; the loss of some right, privilege, estate, honor, office, or effects, by an offense, crime, breach of condition, or other act. n. Forfeiture That which is forfeited; a penalty; a fine or mulct. n.