| A | B |
| havoc | very great destruction or disorder |
| headway | progress toward a destination or a goal |
| ignite | to cause something to start burning |
| illuminate | to provide with light or cast light on someone or something |
| impending | about to occur |
| imperious | arrogant; overbearing; domineering |
| jabber | to talk rapidly and in a senseless manner |
| jargon | the specialized language of a trade, profession, or group of people |