English Dictionary

signal

/ˈsɪɡnəl/

noun

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.

The traffic signal turned red.

意味（1）

A sequence of states representing an encoded message in a communication channel.

意味（2）

Any variation of a quantity or change in an entity over time that conveys information upon detection.

意味（3）

A sign made to give notice of some occurrence, command, or danger, or to indicate the start of a concerted action.

All obeyed / The wonted signal and superior voice / Of this great potentate.

意味（4）

An on-off light, semaphore, or other device used to give an indication to another person.

意味（5）

(of a radio, TV, telephone, internet, etc.) 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.

意味（6）

An action, change or process done to convey information and thus reduce uncertainty.

意味（7）

A token; an indication; a foreshadowing; a sign.

The weary sun […] / Gives signal of a goodly day to-morrow.

意味（8）

Useful information, as opposed to noise.

意味（9）

(computing, Unix) A simple interprocess communication used to notify a process or thread of an occurrence.

意味（10）

(biochemistry) A signalling interaction between cells