| A | B |
| absurd | So unreasonable as to be laughable; foolish, silly |
| accomplish | to do something by making an effort; to complete successfully |
| accomplishment | something requiring skill and determination that is completed successfully |
| ascend | to rise, usually in a steady way |
| dense | tightly packed; crowded close together |
| dense | thick; hard to see through |
| dense | stupid; thickheaded |
| experiment | a test to prove or discover something |
| experiment | to try out new ideas or activities |
| flimsy | easily damaged or broken; not strongly made |
| flimsy | not believable |
| heroic | very brave; showing great courage |
| lumber | wood that has been sawed into boards |
| lumber | to move in a clumsy or heavy way |
| mimic | to copy or imitate closely |
| mimic | to make fun of by imitating |
| significant | important; full of meaning |
| soar | to fly high in the sky |
| soar | to rise suddenly and rapidly |
| spectator | a person who watches an activity |
| suspend | to hang while attached to something above |
| suspend | to stop for a while before going on |
| suspend | bar from working, attending, or taking part for a while |
| terminate | to bring or to come to an end |
| unwieldy | hard to handle or control because of large size or heaviness |