| A | B |
| alert atention watchfulness | Vigilance |
| unclear hazy | Vague |
| bright brilliant | luminous |
| Calibrated | marked with measurements |
| something that interferes with an activity obstacle | Hinderance |
| a similarity between the two sides of something balance | symmetry |
| consternation | a confused amazement or fear |
| Cower | to draw back in fear cringe |
| Snychronizing | matching the timing of synchronize |
| Shrink or flinch involuntarily especially in pain | Wince |