1. (

• exchange ,
• change ,
• interchange

) give to, and receive from, one another; "Would you change places with me?"; "We have been exchanging letters for a year" ;

2. (

• change ,
• exchange ,
• commute ,
• convert ,

) exchange or replace with another, usually of the same kind or category; "Could you convert my dollars into pounds?"; "He changed his name"; "convert centimeters into inches"; "convert holdings into shares" ;

3. (

• switch_over ,
• switch ,
• exchange ,

) change over, change around, as to a new order or sequence ;

4. (

• exchange

) hand over one and receive another, approximately equivalent; "exchange prisoners"; "exchange employees between branches of the company" ;

5. (

• substitute ,
• replace ,
• interchange ,
• exchange ,

) put in the place of another; switch seemingly equivalent items; "the con artist replaced the original with a fake Rembrandt"; "substitute regular milk for fat-free milk"; "synonyms can be interchanged without a changing the context's meaning" ;

6. (

• commute ,
• convert ,
• exchange ,

) exchange a penalty for a less severe one ;