| Term | Definition |
| Solid Waste | any discarded solid material |
| Biodegradable | a material that can be broken down naturally |
| Municipal solid waste | waste produced by houses and business |
| Landfill | permanent waste disposal facility |
| Leachate | liquid that has passed through patched solid waste in landfills |
| N.I.M.B.Y | Not.In.My.Back.Yard. |
| Source Reduction | any change in design to reduce toxicity |
| Recycling | reducing or recovering materials from waste or scrap |
| Compost | decomposing plant and animal material to make rich soil |
| Hazardous Waste | waste that hurts living things |
| Deep-well injection | wastes that are pumped deep in ground and covered in cement |
| Surface impoundment | waste are replaced in a pond and then the water is drained |