From Longman Dictionary of Contemporary Englishlandfillland‧fill /ˈlændfɪl/ noun1[uncountable]RUBBISH/WASTE the practice of buryingwaste under the ground, or the waste buried in this way2[countable]RUBBISH/WASTE a place where waste is buried under the groundFrom Longman Business Dictionarylandfillland‧fill /ˈlændfɪl/ noun1[uncountable] the practice of burying waste from industry and homes in large holes in the ground, or the waste buried in this wayThe chemicals were trucked and used as landfill. —landfilling noun [uncountable]Recycling programs across the US typically cost far more than landfilling.2 (also landfill site) [countable] a place where waste is buriedTypically, used oil is dumped into landfills.For every tonne of household waste that is disposed of through a landfill site, the council pays £13 in tax.
