signal
US: /ˈsɪɡnəɫ/
UK: /sˈɪɡnəl/
UK: /sˈɪɡnəl/
English Vietnamese dictionary
signal /'signl/
- danh từ
- dấu hiệu, tín hiệu; hiệu lệnh
- signals are made by day with flags and by night with lights: ban ngày tín hiệu đánh bằng cờ, ban đêm bằng đèn
- to give the signal for advance: ra hiệu tiến lên
- signalof distress: tính hiệu báo lâm nguy
- dấu hiệu, tín hiệu; hiệu lệnh
- tính từ
- đang kể, đáng chú ý, nổi tiếng; gương mẫu; nghiêm minh
- signal virtue: đạo đức gương mẫu
- signal punishment: sự trừng phạt nghiêm minh
- dùng làm dấu hiệu, để ra hiệu
- đang kể, đáng chú ý, nổi tiếng; gương mẫu; nghiêm minh
- ngoại động từ
- ra hiệu, báo hiệu; chuyển (tin tức, lệnh) bằng tính hiệu
- to signal to someone to stop: ra hiệu cho ai dừng lại
- ra hiệu, báo hiệu; chuyển (tin tức, lệnh) bằng tính hiệu
Advanced English dictionary
noun, verb, adjective
+ noun
1 a movement or sound that you make to give sb information, instructions, a warning, etc.
Synonym: SIGN
a danger / warning / distress signal + At an agreed signal they left the room. + The siren was a signal for everyone to leave the building. + When I give the signal, run! + (AmE) All I get is a busy signal when I dial his number (= his phone is being used). + hand signals (= movements that cyclists and drivers make with their hands to tell other people that they are going to stop, turn, etc.)
See also -
2 an event, an action, a fact, etc. that shows that sth exists or is likely to happen
Synonym: SIGN, INDICATION
The rise in inflation is a clear signal that the government's policies are not working. + Chest pains can be a warning signal of heart problems. + Reducing prison sentences would send the wrong signals to criminals.
3 a piece of equipment that uses different coloured lights to tell drivers to slow down, stop, etc., used especially on railways/railroads and roads: traffic signals + a stop signal + Delays are occurring as a result of signal failure on the northbound line.
4 a series of electrical waves that carry sounds, pictures or messages, for example to a radio or television: TV signals + a high frequency signal + a sound / radio / radar signal + to detect / pick up signals + to emit a signal + The satellite is used for transmitting signals around the world.
+ verb (-ll-, AmE -l-)
1 ~ (to sb) to make a movement or sound to give sb a message, an order, etc: [V] Don't fire until I signal. + Did you signal before you turned right? + He signalled to the waiter for the bill. + The patrolman signalled for her to stop. + [VN] The referee signalled a foul. + [V (that)] She signalled (that) it was time to leave. + [V to inf] He signalled to us to join him. + [VN to inf] She signalled him to follow. + [V wh-] You must signal which way you are going to turn.
2 [VN] to be a sign that sth exists or is likely to happen: This announcement signalled a clear change of policy. + The scandal surely signals the end of his political career.
3 to do sth to make your feelings or opinions known: [VN] He signalled his discontent by refusing to vote. + [V (that)] She has signalled (that) she is willing to stand as a candidate.
+ adjective [only before noun] (formal) important: a signal success / honour + a signal failure of leadership
signally adverb: They have signally failed to keep their election promises.
Thesaurus dictionary
n.
1 See sign, 1, above.
2 incitement, stimulus, spur, impetus, goad, prick:
The waving of the flag will be the signal to advance.
adj.
3 remarkable, conspicuous, striking, extraordinary, unusual, unique, singular, special, noteworthy, notable, exceptional, significant, important, outstanding, momentous, consequential, weighty:
The British forces won a signal victory at Khartoum that day. Winning the competition is a signal accomplishment.
v.
4 motion, indicate, gesture, gesticulate, communicate, announce, notify; whistle, wink, blink, nod, beckon, wave, sign:
When your turn comes, a clerk will signal you to approach the counter. Peter raised his hand as a request to leave the room and the teacher signalled his assent.
Collocation dictionary
1 sign/action/sound that sends a message
ADJ.
clear, unmistakable | agreed, pre-arranged | conflicting, confusing, contradictory, mixed | wrong
Laughing when you should be crying sends out the wrong signals to people.
| alarm, danger, distress, warning | hand, non-verbal, semaphore, smoke, verbal, visual
VERB + SIGNAL
arrange
He had arranged a signal for the band to begin.
| give (sb), make, send (out)
When I give the signal, run!
| interpret (sth as), read, see sth as
The remark was seen as a signal that their government was ready to return to the peace talks.
| pick up, respond to
Interviewers quickly learn to pick up non-verbal signals.
| act as
The insect's bright colours act as warning signals to its predators.
SIGNAL + VERB
come from sth
trying to read the signals coming from the patient
| indicate sth
the signals that can indicate danger
PREP.
at/on a ~
At a pre-arranged signal, everyone started cheering.
| ~ for
She made a signal for the car to stop.
| ~ from/to
Wait for the signal from the leader of your group.
2 set of lights for drivers
ADJ.
railway, traffic
VERB + SIGNAL
operate
SIGNAL + VERB
be (on) red/green
The traffic signals were on red.
| fail
SIGNAL + NOUN
box | failure
3 series of radio waves, chemical messages, etc.
ADJ.
faint, weak | strong | high-frequency, low-frequency | acoustic, analogue, audio, chemical, digital, electrical, electronic, light, radar, radio, sonar, sound, television/TV, video, wireless
VERB + SIGNAL
carry, pass
The nerves carry these signals to the brain.
| convert (sth into), scramble, unscramble
The signal is scrambled into code before it is sent.
| emit, generate, send, transmit | detect, pick up, receive, respond to
This equipment can detect very low frequency signals.
SIGNAL + VERB
travel
A light signal can travel well over 16km before it halves in intensity.
| fade
PREP.
~ from
a faint signal from the satellite
| ~ to
1 move your arms to give a signal
ADV.
frantically, wildly
She signalled frantically to us.
PREP.
for
He raised his hand and signalled for the waiter.
| to
She signalled to the bus driver to stop.
2 show/mark sth
ADV.
clearly
These changes clearly signal the end of the welfare state as we know it.
| effectively | not necessarily
A change of mind in one instance does not necessarily signal a change in overall policy.
Concise English dictionary
signalled|signalling|signals|signaled|signaling'sɪgnl
noun
+any communication that encodes a message
+any incitement to action
+an electric quantity (voltage or current or field strength) whose modulation represents coded information about the source from which it comes
verb
+communicate silently and non-verbally by signals or signs
+be a signal for or a symptom of
adj.
+notably out of the ordinary
