Definition

1. Adjective:
   • Operating or permitting operation in either of two opposite directions: Describes a system, device, or traffic flow that allows movement or communication in two opposite directions.
   • Involving two parts or elements; mutual: Describes an agreement, relationship, or process that involves two parties and requires participation or action from both.
   • Supported by both sides; bilateral: Specifically refers to treaties or agreements that are entered into and upheld by two parties.

Usage Examples

• Operating in two directions:
  • The city installed a new two-way valve for better water control.
  • Be careful when crossing; this is a two-way street.
• Involving two parties; mutual:
  • The agreement established a two-way exchange of scientific data.
  • Effective communication must be a two-way process.
• Bilateral agreement:
  • The two nations signed a two-way treaty on environmental protection.

Advanced Usage

• "two-way communication": A process where information flows back and forth between sender and receiver, allowing for feedback and dialogue.
  • Managers should encourage two-way communication with their teams.
• "two-way mirror": A glass panel that appears as a mirror on one side but is transparent from the other, often used for observation.
  • The interview room had a two-way mirror for the psychologists to observe unseen.

Variants and Related Words

• Two-way street (n): Literally, a street allowing traffic in both directions. Figuratively, a situation or relationship requiring mutual effort and responsibility.
  • Trust is a two-way street; you have to give it to receive it.
• Two-way radio (n): A radio that can both transmit and receive signals, allowing for bidirectional communication.
  • The security team uses two-way radios to coordinate.

Synonyms

• Bidirectional: Operating in two directions.
• Bilateral: Involving two sides or parties.
• Mutual: Held in common; experienced or done by each of two parties toward the other.
• Reciprocal: Given, felt, or done in return.

Related Phrases

• Two-way traffic: Vehicular movement permitted in both directions on a roadway.
  • The sign warns drivers that they are entering a zone with two-way traffic.
• Two-way player (sports): An athlete who competes effectively in both offensive and defensive roles.
  • He was valued as a two-way player who could score and defend.

Adjective

1. operating or permitting operation in either of two opposite directions
   • a two-way valve
   • two-way traffic
   • two-way streets
2. involving two parts or elements
   • a bipartite document
   • a two-way treaty
3. supported by both sides
   • a two-way treaty