| A | B |
|---|
| accumulate | To increase in number or amount; to pile up,collect, or gather. |
| aggravate | To make worse. |
| aggravation | Annoyance;exasperation. |
| conserve | To save by using carefully. |
| conservation | The saving or protection of something through careful use. |
| contaminate | To harm by contact with something undesirable. |
| contamination | The act or result of contaminating. |
| diminish | To make or become smaller or less. |
| drastic | Severe;extreme. |
| extravagant | Spending, costing, or using more than is required. |
| extravagance | The quality of being wasteful. |
| frugal | Careful in spending or using something. |
| impurity | Something that is harmful or dirty. |
| peril | Danger; something that is dangerous. |
| imperil | To place in danger. |
| perilous | Dangerous. |
| perpetual | Lasting or continuous. |
| resource | A supply that can be used when there is a need. |
| resourceful | Able to deal with difficult problems. |
| substitute | To replace one thing or person for another. |
| sustain | To keep up;support. |
| vital | Necessary for continued life. |
