relay

B2 · Upper Intermediate Countable noun Science Technical

n. an electrical device that uses a small current to turn a larger one on or off.

n. an electromagnetic or electronic switch that allows a low-power signal to control a higher-power circuit.

“The clicking sound you hear is the relay turning on the car's headlights.”

“The engineer replaced the faulty mechanical relay with a solid-state version to improve the system's switching speed and reliability.”

B2 · Upper Intermediate

v. to receive a message or information and pass it to someone else.

v. to receive and pass on information, signals, or messages. Transitive — requires an object.

日本語:伝える、中継する※

Español:comunicar

“Please relay this message to the manager as soon as she returns.”

“Satellite stations relay television signals across the globe, allowing for near-instantaneous live broadcasts of international events.”

C2 · Proficiency Countable noun Archaic

n. a fresh group of people or animals that take over a job from a tired group.

n. a fresh set of horses or people arranged to relieve others at specific intervals. Historically associated with postal or carriage routes.

“The riders changed their tired horses for a fresh relay at the station.”

“The efficiency of the imperial postal system relied on a series of relays positioned every ten miles along the main road.”