Definition
A radio link in which both stations can transmit and receive messages with each other, allowing pilots and air traffic controllers (or other facilities) to exchange instructions, clearances, and information in both directions.
Plain English
A radio connection where you can talk to them and they can talk back to you, with both sides hearing each other clearly.
Context Anchor
Seen in aircraft equipment and operating requirements, especially when a pilot must be able to talk with air traffic control.
Derivation
“Two-way” means movement or exchange in both directions. “Communications” comes from an older Latin idea meaning “to share” or “make common,” which fits aviation radio use: information is shared between the pilot and the other station.
Why Pilots Care
Required before entering most controlled airspace under instrument flight rules to receive clearances and instructions.
Intuition Check
Do not read “two-way communications” as simply having a radio turned on. In aviation, it means both sides can exchange messages: the pilot can transmit, and the pilot can receive.
Example Sentence 1
The pilot established two-way communications with the tower before entering Class D airspace.
Example Sentence 2
ATC confirmed two-way communications by asking the pilot to acknowledge the assigned heading.