Definition

1. Adjective:
   • Moving or permitting movement in one direction only: Describes a system, path, or rule that allows travel or flow in a single direction and not the opposite.
   • Valid for travel in a single direction only: Describes a ticket or fare that is valid for a journey to a destination but not for the return trip.

Usage Examples

• Adjective:
  • The city has many one-way streets to improve traffic flow.
  • I bought a one-way ticket to Paris because I'm not sure when I'll return.

Advanced Usage

• "one-way communication": Communication that flows from a sender to a receiver without feedback or response.
  • The lecture was mostly one-way communication, with little time for questions.
• "one-way mirror": A mirror that is transparent from one side and reflective from the other, often used for observation.
  • The police interview was conducted in a room with a one-way mirror.

Variants and Related Words

• One-way street (noun phrase): A street where vehicular traffic is allowed to move in only one direction.
  • Be careful not to turn the wrong way down a one-way street.
• One-way ticket (noun phrase): A ticket for a journey to a place but not back.
  • A one-way ticket is often cheaper than a round-trip fare.

Synonyms

• Unidirectional: Operating or moving in a single direction.
• Single: Involving one part or aspect, such as a single journey.

Antonyms

• Two-way: Allowing movement or communication in both directions.
• Round-trip: Involving a journey to a place and back again.

Related Phrases

• "a one-way trip": A journey from which one does not expect or plan to return.
  • The spacecraft was sent on a one-way trip to Mars.
• "one-way traffic": Traffic that is required to move in a single direction on a road.
  • Signs clearly indicated that we were entering a one-way traffic zone.

Adjective

1. moving or permitting movement in one direction only
   • one-way streets
   • a one-way ticket