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:
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:
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:
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:
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:
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:
signaladjective [ before noun ]
uk/ˈsɪɡ.nəl/us/ˈsɪɡ.nəl/formalnoticeable and unusual:
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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