radio

/'reidiai/

Definition

Noun:
- A communication system: A technology for transmitting signals through electromagnetic waves without wires.
- A device for receiving broadcasts: An electronic device that receives and plays audio broadcasts sent via radio waves.
- The industry or medium: The system, business, or content of sound broadcasting.
Verb:
- To transmit a message: To send a message or communicate using radio technology.
- To contact someone: To make contact with someone, especially in an official or emergency context, using a radio.

Examples of Usage

Noun:
- I listen to the news on the radio every morning. (Refers to the medium/broadcast system.)
- She bought a new radio for the kitchen. (Refers to the physical receiving device.)
- He works in radio. (Refers to the broadcasting industry.)
Verb:
- The ship's captain radioed for assistance. (Used to indicate sending a distress call.)
- The pilot radioed the control tower with her position. (Used for routine communication.)

Advanced Usage

"To be on the radio": To be broadcasting or being broadcast.
- The band will be on the radio tonight at 8 PM.
"Radio silence": A period during which no radio transmissions are made, often for security or secrecy.
- The special forces maintained radio silence during the mission.

Variants and Related Words

Radioactive (adj): Emitting radiation as a result of atomic decay.
- The material was found to be highly radioactive.
Radiochemistry (n): The chemistry of radioactive materials.
Radiowave (n): An electromagnetic wave used in radio transmission.

Synonyms

Related Phrasal Verbs

Radio in: To contact a base or headquarters by radio.
- The officer radioed in his report.
Radio ahead: To send a radio message to a destination before arriving.
- We should radio ahead to let them know we're coming.

Related Idioms

Radio ga-ga: An idiom (from a song title) suggesting a nostalgic or critical view of radio's changing role.
- With all these podcasts, sometimes I feel a bit radio ga-ga for the old days.
Crystal radio: Refers to a very simple, early type of radio receiver.
- He built a crystal radio as a science project.

Adjective

Verb

Noun

a communication system based on broadcasting electromagnetic waves
an electronic receiver that detects and demodulates and amplifies transmitted signals
medium for communication

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