signal
gb/sˈɪɡnəl/ us/sˈɪɡnəl/
A2
英語
~ 2000
語義
0件の語義
名詞
B1
entity
1
Message or data sent between devices or people
A piece of information sent from one person or device to another to share a message.
用法パターン：
a signal from [someone/something]
よくある間違い：
Learners sometimes confuse 'signal' with 'sign'; 'signal' usually involves active transmission, while 'sign' can be passive or symbolic.
類義語
message (More general; can be spoken, written, or electronic.)
|
transmission (More technical; often used in radio or data contexts.)
対義語
silence (Absence of any communication or signal.)
コロケーション
send a signal
|receive a signal
|strong signal
|radio signal
|signal strength
テーマ
communication
|technology
|science
例文
- The phone can't receive a signal in this remote area.
- The traffic light sends a clear signal to drivers.
- We waited for the signal before starting the experiment.
- A weak signal caused the video call to freeze.
学習者向け例文
- I cannot get a signal on my phone.
- The red light is a signal to stop.
- We saw the smoke as a signal.
- They gave a signal to start the race.
動詞
B1
action
2
Indicate something using signs or devices
To show or tell something by using your hands, lights, sounds, or another way without words.
用法パターン：
to signal [something] to [someone]
よくある間違い：
Learners sometimes omit the object when needed, e.g., 'He signaled' without saying what or to whom.
類義語
indicate (More general; can be verbal or non-verbal.)
|
gesture (Specifically refers to movement of body parts.)
対義語
ignore (To fail to give any sign or communication.)
コロケーション
signal for help
|signal to someone
|signal approval
|signal the start
テーマ
communication
|daily life
例文
- She signaled the waiter for the bill.
- The guard signaled us to stop.
- He signaled his intention to leave by packing his bag.
- The driver signaled before turning left.
学習者向け例文
- I signaled the taxi to stop.
- He signaled to me with his hand.
- She signaled that she was ready.
- The man signaled for help.
名詞
A2
entity
3
Gesture, sound, or device giving instruction or alert
A movement, sound, or thing that tells people what to do or warns them.
用法パターン：
a signal to [do something]
類義語
cue (Often used in performance contexts for timing actions.)
|
alert (Implies urgency and warning function.)
対義語
confusion (Lack of clear indication.)
コロケーション
hand signal
|warning signal
|traffic signal
テーマ
daily life
|safety
|communication
|daily_life
|transportation
例文
- The coach gave a hand signal to start the play.
- The siren is a signal to evacuate the building.
- He flashed his headlights as a signal to pass.
学習者向け例文
- The teacher gave a signal to start.
- A red light is a signal to stop.
- The bell is a signal for lunch.
動詞
A2
action
4
Make gesture/sound to indicate action needed
To move your hand or make a sound so someone knows what to do.
用法パターン：
to signal [someone] to [do something]
類義語
beckon (Specifically means calling someone over with a gesture.)
対義語
dismiss (To indicate that someone should leave rather than act.)
コロケーション
signal someone to stop
|signal someone over
テーマ
daily life
|communication
|daily_life
例文
- The lifeguard signaled the swimmers to come ashore.
- She signaled him to be quiet with a finger on her lips.
- The marshal signaled the cars to start the race.
学習者向け例文
- He signaled me to sit down.
- The man signaled us to wait.
- She signaled the children to come inside.
文法
辞書形
signal
IPA
GB/sˈɪɡnəl/
US/sˈɪɡnəl/
音節・強勢
sig - nal （2音節）
Stress on 1st syllable (sig)
活用形
Noun
- Base: signal
- Plural: signals
Verb
- Base: signal
- 3rd Person Singular: signals
- Present Participle: signaling, signalling
- Past: signaled, signalled
関連語
Forms
signals
noun
signaling
verb
signalling
verb
signaled
verb
signalled
verb
Related words
sign
noun A1
表現
danger signal
1/dˈeɪnd͡ʒɚ sˈɪɡnəl/
fixed phrase
Warning of possible harm ahead
Something that shows there might be danger soon.
例文
- Smoke from the forest was a danger signal.
- Falling sales are a danger signal for the company.
send mixed signals
1/sˈɛnd mˈɪkst sˈɪɡnəlz/
idiom
Communicate unclear messages about intentions/feelings
To say or do things that make people unsure about what you really mean.
例文
- He's sending mixed signals about whether he wants the job.
- Her behavior sends mixed signals about her feelings.
signal boost
1/sˈɪɡnəl bˈust/
fixed phrase
informal
Increase visibility of message online
To share something online so more people see it.
例文
- Can you give this charity post a signal boost?
- The tweet got a big signal boost after a celebrity shared it.
give the green light
2/ɡˈɪv ðə ɡɹˈin lˈaɪt/
idiom
informal
Give official permission to proceed
To say yes so that someone can start doing something.
例文
- The mayor gave the green light to the new park project.
- The manager gave us the green light to launch the campaign.
give the green light
3/ɡˈɪv ðə ɡɹˈin lˈaɪt/
idiom
Allow something to start officially
To give permission for something to begin.
例文
- The boss gave the green light for the new project.
- They can't start building until the city gives the green light.