signal

B1 · Intermediate Countable noun Computing

n. the electronic waves that carry information to your phone, TV, or radio.

n. an electromagnetic impulse or variable voltage that transmits data, audio, or video across a communication channel.

日本語:電波※

“I'm sorry, I can't hear you because my phone signal is very weak here.”

“Engineers worked to filter out the background noise to ensure the satellite signal remained clear during the atmospheric disturbance.”

B1 · Intermediate Countable noun

n. a light used to direct traffic on a road or railway.

n. a technical device, such as a semaphore or light, used to regulate the movement of vehicles or trains.

日本語:信号※

“The driver stopped because the signal turned red.”

“The automated railway signal failed during the storm, forcing all incoming trains to halt outside the station for safety.”

B1 · Intermediate

v. to show or tell something by making a movement or using a light.

v. to communicate or indicate information through a non-verbal sign or electronic transmission.

Español:señalizar

“She signalled to the waiter that she wanted the bill.”

“The CEO's speech was intended to signal a shift in the company's long-term environmental strategy to the shareholders.”

C2 · Proficiency Formal · Literary

adj. very important or easy to notice.

adj. distinguished from others by being particularly important, notable, or significant.

“The new law was a signal victory for the rights of workers.”

“The signing of the peace treaty was regarded as a signal achievement in the diplomat's long and distinguished career.”