A restraint; a device or part of a device that operates to restrain. • The projection or loop, on the thill of a vehicle, to which a strap of the harness is attached, to hold back a carriage when going downhill, or in backing. Also, the strap or part of the harness so used. • A delay in the movement of solute due to the slowing effects of diffusion • Income that is set aside for eventualities such as customer returns, seasonal fluctuations, performance bonuses, unexpected costs, etc. • A portion of the money that is owed to someone which is not paid, but instead held as security, until the entire job or contract has been successfully completed. • Money that a buyer does not pay at the time of purchase, but which is paid afterward (sometimes in installments, sometimes on a specified date). • The difference between a dealer's cost and the manufacturer's suggested retail price. • A time period during which sales of a specific security or commodity cannot occur. • A time period after the first release of a creative work before it can be distributed or adapted to other channels. • A legal provision for restricting distributions to a trust beneficiary under certain conditions. • The withholding of permits to extract a natural resource. • A designation of some details about a crime that the police deliberately do not reveal to the public. • A random subset of a body of data that is not used in the main analysis, but rather reserved for other purposes, such as validation.