| A | B |
|---|
| disease | Any condition of an organism that makes it unable to function in the normal, proper way, especially a condition that results from infection, inherent weakness, or pressures of the environment |
| experiment | Something done to demonstrate a known fact, check the correctness of a theory, or see how well a new thing works; a test |
| discovery | Something newly found, learned of, or observed |
| disable | To weaken or destroy the normal capacity or abilities of; cripple; incapacitate |
| international | Of or between two or more nations or nationalities |
| dishonest | Inclined to lie, cheat, or deceive; untruthful |
| export | To send or carry (goods or products) to another country for trade or sale |
| experience | An event or series of events participated in or lived through 2. Knowledge or skill gained through direct activity |
| interrupt | To stop the conversation, speech, or action of (someone) by breaking in |
| extreme | Very great or intense; utmost |
| exhaust | The escape or release of waste gases, fumes, or vapors, as from a car. 2. To wear out completely; tire |
| distress | Pain or suffering of mind or body resulting from worry, anxiety, or sickness |
| expand | To increase in one or more physical dimensions, as length or volume; enlarge |
| extent | The scope or range of something |
| disturb | To intrude upon; bother |
| interfere | To intrude in affairs of others; meddle |
| disguise | To conceal the identity of, as with clothes or other effects |
| discourage | To make less hopeful or enthusiastic |
| expensive | High priced; costly |
| interview | A face-to-face meeting, especially to obtain information |
| disaster | Great destruction, distress, or misfortune |
| disagree | To dispute; quarrel |
| explain | To make plain or clear; clarify |
| district | An area, especially one having a particular characteristic or function |
| excuse | To pardon; forgive |
| disinfectant | A substance that kills micro-organisms that cause disease; antiseptic |
| expertise | Expert skill or knowledge |
| intervene | To enter a course of events so as to hinder or change it |
| exposure | The condition of being exposed or subjected to |
| interdependent | Mutually dependent |
