1. (noun) any materials unused and rejected as worthless or unwanted

• waste
• waste material
• waste product

1. (noun) any materials unused and rejected as worthless or unwanted

• body waste
• excrement
• excreta
• excretion
• excretory product
• crud
• filth
• skank
• dross
• impurity
• effluent
• sewer water
• wastewater
• exhaust
• exhaust fumes
• fumes
• food waste
• garbage
• refuse
• scraps
• pollutant
• rubbish
• scrap
• trash
• sewage
• sewerage
• slop
• toxic industrial waste
• toxic waste

1. (noun) any materials unused and rejected as worthless or unwanted

• material
• stuff

1. (noun) any materials unused and rejected as worthless or unwanted

• run off
• waste
• waste