[ in-fruh-struhk-cher ]
/ ˈɪn frəˌstrʌk tʃər /
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Definition of infrastructure

the fundamental facilities and systems serving a country, city, or area, as transportation and communication systems, power plants, and schools: Investments in infrastructure helped the U.S. economy recover from the Great Depression.
the basic, underlying framework or features of a system or organization:Over the years, as the incidence of cancer increased, the infrastructure of the hospital was developed to accommodate the new cases.
the military installations of a country:We could do much with just a fraction of the billions spent to maintain our robust overseas infrastructure.
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Origin of infrastructure

First recorded in 1925–30; infra + structure

OTHER WORDS FROM infrastructure

in·fra·struc·tur·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use infrastructure in a sentence

British Dictionary definitions for infrastructure

/ (ˈɪnfrəˌstrʌktʃə) /

the basic structure of an organization, system, etc
the stock of fixed capital equipment in a country, including factories, roads, schools, etc, considered as a determinant of economic growth
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012