Duplex

adj. double; having two floors; bidirectional, in two directions (Computers)

n. building having rooms on two floors or stories; house with dwelling accommodations for two separate families

Duplex, meaning double or twofold, commonly refers to:Duplex (building), a two-unit apartment building or condominiumDuplex (telecommunications), a telecommunications systems where signal can flow in both directions between connected parties
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Noun
1. a house with two units sharing a common wall
(synonym) duplex house, semidetached house
(hypernym) house
2. an apartment having rooms on two floors that are connected by a staircase
(synonym) duplex apartment
(hypernym) apartment, flat
Adjective
1. (used technically of a device or process) having two parts; "a duplex transaction"
(similar) multiple
2. allowing communication in opposite directions simultaneously; "duplex system"; "duplex telephony"
(similar) bidirectional
(classification) telecommunication, telecom

adj. duplex, double

n. hook

n. party line, joint telephone line

adj. duplex, shared