duplex Meaning, Definition & Usage

1. noun a house with two units sharing a common wall
   semidetached house; duplex house.
   
2. noun an apartment having rooms on two floors that are connected by a staircase
   duplex apartment.
   
3. verb change into a duplex
   
4. adjective satellite (used technically of a device or process) having two parts
   
   • a duplex transaction
5. adjective satellite allowing communication in opposite directions simultaneously
   
   • duplex system
   • duplex telephony

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