a congressional or parliamentary bill involving the private interests of a particular individual, corporation, or local unit.
Compare public bill.
Origin of private bill
First recorded in 1670–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for private bill
a bill presented to Parliament or Congress on behalf of a private individual, corporation, etc
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