| Term | Definition |
| ameliorate | become better; make better; improve; enhance |
| amelioration | improvement |
| conserve | keep from waste, loss, or decay; save |
| conservation | preservation from loss, injury or waste |
| conservationist | one who advocates the conservation of natural resources |
| detriment | injury, damage, or something that causes it; disadvantage |
| detrimental | harmful; damaging |
| exotic | 1) introduced from another country, foreign 2) strikingly unusual, strange |
| folly | lack of good sense, foolish action or undertaking |
| formerly | in an earlier period, previously |
| former | preceding; previous |
| harmony | peacable or friendly relations; accord; agreement; tranquility; concord |
| harmonious | friendly, amicable |
| ignore | refuse to take notice of; disregard |
| ignoramus | ignorant, stupid person; dunce, dolt; dullard; nincompoop |
| impediment | something that hinders or obstructs; hindrance, obstacle |
| impede | interfere with or slow the progress of; hinder; obstruct |
| indolent | disposed to avoid exertion; lazy; idle; lethargic |
| indolence | idleness; laziness |
| intact | untouched by anything that damages or diminishes; left complete or entire; uninjured |
| invalid | not binding in law; having no force or effect; void; nugatory |
| invalidate | abolish, annul |
| invalid | sickly or disabled person |
| noncarcinogenic | not producing, or tending to produce, cancer |
| parsimonious | unduly sparing in the spending of money; stingy; miserly |
| parsimony | stinginess, parsimoniousness |
| raze | destroy utterly by tearing down; demolish; level |
| reticent | inclined to be silent or secretive, uncommunicative; reserved |
| reticence | restraint in communicating |
| retire | 1) withdraw from active duty or buisness 2) go to bed |
| retort (v) | answer; reply sharply or angrily |
| retort (n) | quick, witty or sharp reply; answer |
| subvert | overturn or overthrow from the foundation, undermind |
| subversion | sabotage; undermining |
| tractable | easily led; taught; or controlled; yielding, docile;amenable |
| tractability | obedience |