| high sign(noun, expression, sign, alert, caution) |
| hint(noun, information, sign, notice, alert) |
| indication |
| indication(noun, sign, notice, alert, hint) |
| information(noun, sign, notice, alert, hint) |
| injunction(noun, sign, notice, alert, hint) |
| intimation(noun, sign, notice, alert, hint) |
| lesson |
| look out(noun, expression, information, sign, notice) |
| nod(noun, sign, alert, caution, signal) |
| notice(noun, caution, caveat) |
| notification(noun, sign, notice, alert, hint) |
| portent(noun, sign, notice, alert, hint) |
| prediction(noun, sign, notice, alert, hint) |
| presage(noun, sign, notice, alert, hint) |
| recommendation(noun, sign, notice, alert, hint) |
| sign |
| sign(noun, notice, alert, caution, signal) |
| signaling device(noun, expression, alert, caution, signal) |
| suggestion(noun, sign, notice, alert, hint) |