signal

Meaning

Noun

1. A sequence of states representing an encoded message in a communication channel.
2. Any variation of a quantity or change in an entity over time that conveys information upon detection.
3. A sign made to give notice of some occurrence, command, or danger, or to indicate the start of a concerted action.
4. An on-off light, semaphore, or other device used to give an indication to another person.
5. (Internet, TV, usually) 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.
6. An action, change or process done to convey information and thus reduce uncertainty.
7. A token; an indication; a foreshadowing; a sign.
8. Useful information, as opposed to noise.
9. (Unix) A simple interprocess communication used to notify a process or thread of an occurrence.
10. A signalling interaction between cells

Verb

1. (ambitransitive) To indicate; to convey or communicate by a signal.
2. (transitive) To communicate with (a person or system) by a signal.

Adj

Standing above others in rank, importance, or achievement.

Synonyms

sign

mark

token

indication

indicate

beckon

gesture

character

hint

symbol

alarm

symptom

signaling

point

omen

motion

flag

signify

index

signalize

semaphore

warn

alert

badge

make

augury

brand

warning

⚠️

wave

👋

cue

betoken

bespeak

traffic light

🚦

considerable

siren

flash

spot

pip

portent

noticeable

notable

marker

password

figure

prominent

call

earmark

indicator

horn

marked

Translations

signal

Signal

señal

segnale

signe

teken

Zeichen

sinal

segno

signaler

işaret

sein

signo

segnalare

Pronounced as (IPA)

/ˈsɪɡnəl/

Etymology

From Old French segnal, seignal or Medieval Latin signāle; noun use of the neuter of Late Latin signālis, from Latin signum; verb use from 1805, as a shortened from signalize (1650s).

Sentences

Worryingly , the radio signal became weaker .

The Hamilton Bowl overflowed , flooding the Signal Hill area .

The survivors , including a badly wounded , " practically incoherent " signal officer , went for the lifeboats .