relay

US /ˌrɪˈleɪ/
UK /ˌrɪˈleɪ/
"relay" picture
1.

a group of people or animals engaged in a task or activity for a period of time and then replaced by a similar group

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The workers operated in relays to ensure continuous production.
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They ran the marathon in relays, each person covering a segment.
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shiftturnteamsquad
2.

an electrical device, typically incorporating an electromagnet, that opens or closes a circuit by a small current

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The circuit uses a relay to control the high-power motor.
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A faulty relay caused the system to shut down.
1.

receive and pass on (information or a message)

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Please relay this message to your team.
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The satellite will relay data back to Earth.
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transmitconveycommunicatepass onsend