IPA: //ˈɒk.tjuː.plɛks//
KK: /ˈɑkˌtjuːplɛks/
A system that allows eight messages to be sent at the same time over a single wire, often used in telegraphy.
The octuplex system revolutionized communication by enabling multiple messages to be transmitted simultaneously.
Octuplex → It is formed from "octo-" (from Greek "okto", meaning eight) and "-plex" (from Latin "plexus", meaning woven or interwoven). The word "octuplex" refers to something that is composed of or arranged in eight parts or layers.
Think of 'eight' ('octo-') being 'woven together' ('-plex') to remember that 'octuplex' means something made up of eight parts.