Definition

1. Adjective:

   • Having two parts or units: Consisting of two identical or complementary parts, often used to describe a physical structure or a technical system.
   • Allowing two-way communication: Specifically in telecommunications, permitting the transmission of signals in two directions simultaneously.

2. Noun:

   • A type of residential building: A single building divided into two separate living units, often sharing a common wall.
   • An apartment on two floors: A single apartment that occupies two connected floors, typically linked by an internal staircase.

3. Verb:

   • To convert into a duplex: To change a structure, especially a single-family house, into a building containing two separate living units.

Usage Examples

• Adjective:

  • The engineer designed a duplex circuit for full data exchange.
  • A duplex printing system allows printing on both sides of the paper automatically.

• Noun:

  • They bought a duplex and rented out the lower unit.
  • Her duplex in the city has a living room on the first floor and bedrooms on the second.

• Verb:

  • The owner decided to duplex the large Victorian house to generate rental income.

Advanced Usage

• Technical/Computing Context: In networking, "full-duplex" describes a system where data flows bidirectionally at the same time, as in modern Ethernet connections. "Half-duplex" allows communication in both directions, but only one direction at a time.
  • A full-duplex radio allows the pilot and air traffic control to speak and listen simultaneously.

Variants and Related Words

• Duplexer (noun): A device that allows a single antenna to be used for both transmitting and receiving signals.
• Duplexity (noun): The state or quality of being duplex; twofold nature.
• Duplex Apartment (noun phrase): Another term for a two-story apartment. (Note: This is a compound term listed here as a variant).

Synonyms

• Adjective: Double, twofold, twin, two-part.
• Noun: Two-family house, semi-detached house (in some contexts), maisonette (for an apartment on two floors).

Antonyms

• Adjective: Simplex (allowing communication in only one direction), single, singular.

Related Phrases and Compounds

• Duplex House: A house divided for two families.
• Duplex System: Any technical system with two parallel or complementary components.
• Duplex Printing: A printing feature that prints on both sides of a sheet.

Adjective

1. allowing communication in opposite directions simultaneously
   • duplex system
   • duplex telephony
2. (used technically of a device or process) having two parts
   • a duplex transaction

Noun

1. an apartment having rooms on two floors that are connected by a staircase
2. a house with two units sharing a common wall

Verb

1. change into a duplex