| bad omen(noun, expression, feeling, apprehension, chill) |
| bad vibes(noun, expression, feeling, apprehension, chill) |
| badge(mark, light, sign, notice, demonstration) |
| bang(point, prompt, hint) |
| bluster(noun, threat) |
| brand |
| bug(point, prompt, hint) |
| bulletin(noun, information, notice, intelligence, statement) |
| buoy(noun, alarm) |
| buzz(point, prompt, hint) |
| buzzer(noun, alert, cry, caution, signal) |
| calculation(noun, responsibility, attention, judgment, caution) |
| call for |
| canniness(noun, responsibility, attention, judgment, caution) |
| carefulness(noun, responsibility, attention, judgment, caution) |
| chariness(noun, responsibility, attention, judgment, caution) |
| check |
| chill(noun, feeling, apprehension, dread, premonition) |
| circular(noun, order, communication, information, sign) |
| circumspection(noun, responsibility, attention, judgment, caution) |