fourplex

[ fawr-pleks, fohr- ]
/ ˈfɔr plɛks, ˈfoʊr- /
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noun Architecture.

Origin of fourplex

1970–75; four + -plex, abstracted from duplex (apartment), in place of quadruplex
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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