1. providing for or allowing movement in opposite directions, or both to and from a place: two-way traffic.
  2. allowing or entailing communication or exchange between two persons, groups, countries, etc.
  3. involving two parties or participants, as a relationship or agreement; two-sided: a two-way race for the nomination.
  4. entailing responsibilities, obligations, etc., on both such parties.
  5. capable of both receiving and sending signals: a two-way radio.
  6. capable of being used in two ways.

Origin of two-way

First recorded in 1565–75 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for two-way

Contemporary Examples of two-way

Historical Examples of two-way

British Dictionary definitions for two-way


  1. moving, permitting movement, or operating in either of two opposite directionstwo-way traffic; a two-way valve
  2. involving two participantsa two-way agreement
  3. involving reciprocal obligation or mutual actiona two-way process
  4. (of a radio, telephone, etc) allowing communications in two directions using both transmitting and receiving equipment
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012