signal
/ˈsɪɡnəl/ noun B1- A sequence of states representing an encoded message in a communication channel.
- Any variation of a quantity or change in an entity over time that conveys information upon detection.
- A sign made to give notice of some occurrence, command, or danger, or to indicate the start of a concerted action.
- An on-off light, semaphore, or other device used to give an indication to another person.
- A railway signal.
- An electromagnetic action, normally a voltage that is a function of time, that conveys the information of the radio or TV program or of communication with another party. · My mobile phone can't get a signal in the railway station.
- An action, change or process done to convey information and thus reduce uncertainty.
- A token; an indication; a foreshadowing; a sign.
Plural signals
From the library
But one could not look upon his cruel blue eyes, with their drooping, cynical lids, or upon the fierce, aggressive nose and the threatening, deep-lined brow, without reading Nature’s plainest danger-signals.
His signal was returned, and in two hours afterwards the new-comer lay at anchor beside the yacht.
Just then a bell rang, and the green girl said to Dorothy, “That is the signal.
Just at the moment when they were taking the dainty animal from the spit, they saw Edmond springing with the boldness of a chamois from rock to rock, and they fired the signal agreed upon.
Other matches
Learn signal in real texts
With a free account, hover any word in the library for its meaning, hear it read aloud, save words for review timed to your memory, and see how much of each book you already know.