›[U]waste that is buried in the ground in large amounts: Landfill is a long-term pollutant.At the facility we separate recyclable goods from landfill.
›[C or U](alsolandfill site) a place where waste is buried in the ground in large amounts: The idea is to transform the landfill into a park.
›[U]the process of burying large amounts of waste: Landfill provides a safe disposal option for waste that can't be recycled, composted, or used to generate energy.The landfill tax is a tax on the disposal of waste.