| alert |
a warning of possible danger or the time during which such a warning lasts. [1/3 definitions] |
| caution |
a warning. [2/3 definitions] |
| example |
a punishment meant to serve as a warning to others. [1/4 definitions] |
| flash |
happening suddenly and without warning. [1/7 definitions] |
| foghorn |
a loud, deep horn on a ship or on the shore, used in fog or at night to give warning signals. |
| horn |
a device used to make a loud warning sound. [1/3 definitions] |
| lighthouse |
a tower with a flashing light for guiding ships and warning them of dangers in the water. |
| notice |
warning, news, or sign of something, especially in written or printed form. [1/3 definitions] |
| out of the blue |
without warning; suddenly. |
| prophecy |
a prediction or warning of future events. [1/2 definitions] |
| rocket1 |
to rise suddenly and without warning; skyrocket. [1/3 definitions] |
| sign |
a printed direction, notice, or warning put on a surface or on an upright support. [1/7 definitions] |
| signal |
a movement, action, or device used to communicate instructions, warning, or other information. [1/7 definitions] |
| siren |
a warning device that makes a loud, piercing noise. |
| sudden |
happening without notice or warning; not expected. [1/2 definitions] |
| suddenly |
in a way that is very quick and without warning. |
| surprise |
to catch (someone or something) off guard; act upon without giving any warning. [1/6 definitions] |
| taillight |
a red warning light at the rear of a vehicle. |
| threat |
a warning of trouble or harm. [1/2 definitions] |
| warning |
acting as a warning. [1/3 definitions] |