Broadcast vs Relay

When to use each in English, with meaning, register, and examples.

Broadcast

Top 2,000 (common)B2verb

Relay

Top 2,000 (common)
 BroadcastRelay
Pronunciation🇬🇧 /["/ˈbrɔːdkɑːst/","/ˈbrɔːdkɑːsts/","/ˈbrɔːdkɑːstɪŋ/"]/🇺🇸 /["/ˈbrɔːdkæst/","/ˈbrɔːdkæsts/","/ˈbrɔːdkæstɪŋ/"]/🇬🇧 //rɪˈleɪ//🇺🇸 //rɪˈleɪ//
MeaningTo send out information or programs to a lot of people.A race where teams take turns running, or passing something.
ExampleThe concert will be **broadcast live** *(= at the same time as it takes place)* tomorrow evening.The relay team won the competition.
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 2,000 (common)
CEFR levelB2-
Part of speechverb
Collocationslive, nationally, originally, from, torelay race, relay information, relay team, relay baton, relay station
Antonymssuppress, withhold-
Common mistakesConfused with 'cast' as a noun., Using 'broadcasted' instead of 'broadcast' for past forms., Confusing with 'stream' in the context of online content.Confused with 'release' which has a different meaning., Using 'relay' as a noun and forgetting it's also a verb.
Usage notesUse 'broadcast' when referring to media like TV or radio. It's suitable for formal and neutral contexts but can feel out of place in very casual conversations.Common in sports contexts; can also refer to passing information. Suitable for all audiences.

See it in real clips

Broadcast

Frequently asked questions: Broadcast vs Relay

What's the difference between Broadcast and Relay?

Broadcast: To send out information or programs to a lot of people. Relay: A race where teams take turns running, or passing something.

Can you show an example of each?

Broadcast: The concert will be **broadcast live** *(= at the same time as it takes place)* tomorrow evening. Relay: The relay team won the competition.

Can I use Broadcast and Relay interchangeably?

Not always. Broadcast and Relay are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

Related comparisons