| A | B |
|---|
| calibrate | mark with measurements |
| vigilance | alert attention; watchfulness |
| boisterous | noisy and lacking in restraint or discipline |
| wince | to shrink or flinch, a facial expression showing pain |
| luminous | bright; brilliant; giving off a steady, glowing light |
| hindrance | something that interferes with an activity; obstacle |
| symmetry | a similarity between the two sides of something; balance |
| vague | unclear; hard to see or understand |
| cower | to crouch or cringe in fear |
| synchronize | to happen together at the same time or rate |
| vigilance | alert attention; watchfulness |
| gaunt | very thin, especially from disease or hunger or cold |
| panorama | an unobstructed view of a wide area |
| impersonal | showing no emotion or signs of personality |
| edifice | a building or an imposing structure |
| entity | a real person or thing |
