duplex dooˈ or dūˈpleks/

1. Twofold, double
2. Having some part doubled
3. Allowing communication and transmission in both directions simultaneously (computing, telegraphy, etc)

1. A duplex apartment or house
2. A facility of a communications system enabling simultaneous transmission and reception (telecommunications)

duˈplexer noun (telecommunications and radar)

A system allowing the use of the same aerial for transmission and reception

• under-age
• underagent
• underagents
• under-and-over
• underarm
• under arms
• under arrest
• under bare poles
• underbear
• underbearer
• underbearers
• underbearing
• underbearings
• underbears
• underbellies
• underbelly
• underbid
• underbidder
• underbidders
• underbidding
• underbids
• underbit
• underbite
• underbites
• underbiting