| distress signal(noun, expression, idiom, help, sign) |
| alarm(noun, sign, notice, alert, device) |
| lesson(noun, sign, notice, alert, hint) |
| signal(noun, sign, notice, alert, indication) |
| SOS(noun, information, sign, notice, alert) |
| admonition(noun, sign, notice, alert, caution) |
| advice(noun, sign, notice, alert, hint) |
| advice |
| alert(noun, sign, notice, caution, signal) |
| augury(noun, sign, notice, alert, hint) |
| caution(noun, sign, notice, alert, signal) |
| caution |
| danger signal(noun, expression, alert, alarm, warning) |
| exhortation(noun, sign, notice, alert, hint) |
| fore(noun, sign, notice, alert, hint) |
| foretoken(noun, information, sign, notice, alert) |
| forewarning(noun, sign, notice, alert, caution) |
| guidance(noun, sign, notice, alert, hint) |
| handwriting on wall(noun, expression, idiom, information, sign) |
| heads up(noun, expression, information, sign, notice) |