interchange

UK: noun: /ˈɪntə^rtʃeɪndʒ/, verb: /ˌɪntə^rˈtʃeɪndʒ/

US: /v. ˌɪntɚˈtʃeɪndʒ; n. ˈɪntɚˌtʃeɪndʒ/

US: (v. in′tər chānj′; n. in′tər chānj′)

Inflections of 'interchange' (v): (⇒ conjugate)

interchanges

v 3rd person singular

interchanging

v pres p

interchanged

v past

interchanged

v past p

WordReference Random House Learner's Dictionary of American English © 2026

in•ter•change /v. ˌɪntɚˈtʃeɪndʒ; n. ˈɪntɚˌtʃeɪndʒ/   v., -changed, -chang•ing, n. 
v. 

1. to cause (one thing) to change places with another: [~ + object]
   to interchange pieces of modular furniture.
   [no object]
   The two sides interchange every other game.

n. [countable]

2. an act or instance of interchanging:
   the free interchange of ideas.
3. Transport a highway intersection in which vehicles may move from one road to another without crossing traffic:
   an accident at the last interchange.

WordReference Random House Unabridged Dictionary of American English © 2026

in•ter•change  (v. in′tər chānj′;n. in′tər chānj′), v., -changed, -chang•ing, n. 
v.t. 

1. to put each in the place of the other:
   to interchange pieces of modular furniture.
2. to cause (one thing) to change places with another;
   transpose.
3. to give and receive (things) reciprocally;
   exchange:
   The twins interchanged clothes frequently.
4. to cause to follow one another alternately;
   alternate:
   to interchange business cares with pleasures.

v.i. 

5. to occur by turns or in succession;
   alternate.
6. to change places, as two persons or things, or as one with another.

n. 

7. an act or instance of interchanging;
   reciprocal exchange:
   the interchange of commodities.
8. a changing of places, as between two persons or things, or of one with another.
9. alternation;
   alternate succession.
10. Transport a highway intersection consisting of a system of several different road levels arranged so that vehicles may move from one road to another without crossing the streams of traffic.

• Middle French entrechangier
• 1325–75; inter- + change; replacing Middle English entrechaungen

in′ter•chang′er, n. 

Collins Concise English Dictionary © HarperCollins Publishers::

interchange verb / ˌɪntəˈtʃeɪndʒ/

1. to change places or cause to change places; alternate; exchange; switch

noun / ˈɪntəˌtʃeɪndʒ/

1. the act of interchanging; exchange or alternation
2. a motorway junction of interconnecting roads and bridges designed to prevent streams of traffic crossing one another

ˌinterˈchangeable adjective

ˌinterˌchangeaˈbility, ˌinterˈchangeableness noun

ˌinterˈchangeably adverb