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单词 signal
释义

signalnoun [ C ]

uk/ˈsɪɡ.nəl/us/ˈsɪɡ.nəl/

signal noun [ C ] (ACTION)

B2 an action, movement, or sound that gives information, a message, a warning, or an order:

When she gave (them) the signal, they all cheered.
[ + that ] The fireworks were a signal that the festival had started.
[ + to infinitive ] The police officer gave us the signal to stop.
The signal for a race to start is often the firing of a gun.

US UK indicator a turn signal

More examples

  • At a prearranged signal, everyone started moving forwards.
  • I usually set my watch by the time signal on the radio.
  • At the given signal, the group rushed forward to the barrier.
  • I've been trying to call him all evening, but I keep getting the engaged signal.
  • A whistle is the signal for the children to line up ready to go into the classroom.

Thesaurus: synonyms and related words

The exterior of vehicles

  • brake light
  • bull bar
  • bumper sticker
  • hood
  • Klaxon
  • licence plate
  • license plate number
  • offside
  • petrol cap
  • radial
  • retread
  • roof
  • roof rack
  • side mirror
  • splash guard
  • stepney
  • tyre
  • vanity plates
  • wing
  • wing mirror

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signal noun [ C ] (WAVE)

B2 a series of electrical or radio waves that are sent to a radio or television in order to produce a sound, picture, or message

Examples

  • The picture quality is bad because the TV signal isn't powerful enough.
  • The equipment sent out a regular high-pitched signal.
  • There is some interference on the signal - do not adjust your set.

Thesaurus: synonyms and related words

Communications - general words

  • broadband
  • buzz
  • cable
  • caller ID
  • communication
  • constructive interference
  • cybernetics
  • destructive interference
  • Entryphone
  • fibre optics
  • fibre-optic cable
  • interference
  • microwave
  • multimedia
  • on-screen
  • optical fibre
  • pick sth up
  • relay
  • smart card
  • telegraph

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signal noun [ C ] (SHOWING)

something that shows that something else exists or is likely to happen:

The loss is a clear signal of his deteriorating confidence.
The changing colour of the leaves on the trees is a signal that it will soon be autumn.

signal noun [ C ] (EQUIPMENT)

equipment, especially on the side of a railway or road, often with lights, that tells drivers to stop, continue, or go more slowly:

a railway signal
a traffic signal
a road signal

Thesaurus: synonyms and related words

Railways & railway lines

  • Amtrak
  • artery
  • buffer
  • cable railway
  • funicular
  • grade crossing
  • junction
  • light railway
  • metro
  • monorail
  • narrow-gauge
  • point
  • railroad
  • railroad tie
  • rapid-transit
  • RR
  • subway
  • switch
  • switchback
  • track

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You can also find related words, phrases, and synonyms in the topics:

Roads: lights, signs & markings on roads

signalverb

uk/ˈsɪɡ.nəl/us/ˈsɪɡ.nəl/-ll- or US usually -l-

signal verb (ACTION)

C2 [ I or T ] to make a movement, sound, flash, etc. that gives information or tells people what to do:

Flashing lights on a parked car usually signal a warning (to other drivers).
He signalled left, and turned the lorry slowly.
He was signalling (= giving a signal) with a red flag.
She signalled for help.
[ + that ] She signalled to the cars behind her that they were going the wrong way.
[ + obj + to infinitive ] The children's mother signalled them to be quiet.
[ + to infinitive ] The children's mother signalled to/for them to be quiet.

More examples

  • She signalled to them to sit down.
  • The ship signalled for help.
  • A flashing light signalled that there was danger ahead.
  • I signalled left and turned into the driveway.

Thesaurus: synonyms and related words

Communicating & keeping in touch

  • ahold
  • bell
  • catch up
  • communicate
  • communication
  • communicative
  • give sb a bell idiom
  • hear
  • interact
  • interaction
  • pick
  • pick up the phone idiom
  • radio silence
  • raise
  • rapporteur
  • reach out to sb
  • ring (sb) back
  • send
  • send word idiom
  • touch

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signal verb (SHOW)

[ T ] to show that you intend or are ready to do something:

[ + that ] The union has signalled that the workers will strike.
The union has signalled the workers' intention to strike.
The death of Chairman Mao signalled (= marked) the end of an era in Chinese history.

signaladjective [ before noun ]

uk/ˈsɪɡ.nəl/us/ˈsɪɡ.nəl/formal

noticeable and unusual:

a signal success/failure

Thesaurus: synonyms and related words

Unique and unusual

  • accidental
  • alt-
  • alternative
  • be marked out as sth idiom
  • be one in a million idiom
  • extraordinary
  • fantastic
  • guerrilla
  • incongruous
  • inimitable
  • irreplaceable
  • personalize
  • random
  • rarity
  • refreshing
  • remarkable
  • remarkably
  • signally
  • singular
  • unwonted

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更新时间:2024/11/12 12:33:57