in·​fra·​struc·​ture | \ ˈin-frə-ˌstrək-chər How to pronounce infrastructure (audio) , -(ˌ)frä- \

Definition of infrastructure

1 : the system of public works of a country, state, or region also : the resources (such as personnel, buildings, or equipment) required for an activity
2 : the underlying foundation or basic framework (as of a system or organization)
3 : the permanent installations required for military purposes

Other Words from infrastructure

infrastructural \ ˈin-​frə-​ˌstrək-​chə-​rəl How to pronounce infrastructure (audio) , -​ˌstrək-​shrəl How to pronounce infrastructure (audio) , -​(ˌ)frä-​ \ adjective

Did you know?

Infra- means "below;" so the infrastructure is the "underlying structure" of a country and its economy, the fixed installations that it needs in order to function. These include roads, bridges, dams, the water and sewer systems, railways and subways, airports, and harbors. These are generally government-built and publicly owned. Some people also speak about such things as the intellectual infrastructure or the infrastructure of science research, but the meaning of such notions can be extremely vague.

Examples of infrastructure in a Sentence

More money is needed to save the crumbling infrastructure of the nation's rural areas. We need to spend more money on maintaining and repairing infrastructure.
Recent Examples on the Web On the battlefield, Ukrainian officials said a Russian rocket attack targeted an area around Zaporizhzhia, destroying unspecified infrastructure. Elena Becatoros And Jon Gambrell, Chicago Tribune, 11 May 2022 DigitalBridge is partnering with an affiliate of the infrastructure investor IFM Investors to acquire Switch for $34.25 a share. Chris Wack, WSJ, 11 May 2022 On the battlefield, Ukrainian officials said a Russian rocket attack targeted an area around Zaporizhzhia, destroying unspecified infrastructure. Elena Becatoros,, 11 May 2022 Level 4, previously the highest risk category, is now reserved only for special circumstances, such as extremely high case counts, emergence of a new variant of concern or health care infrastructure collapse. Eliza Mackintosh And Hafsa Khalil, CNN, 11 May 2022 The city of Houston had hoped to use $95 million in federal grants to upgrade Kashmere Gardens’ storm drainage infrastructure. Washington Post, 11 May 2022 Which is more important to West Virginia voters: Trump or infrastructure? Amy Nakamura, USA TODAY, 10 May 2022 On April 25, Ukrainian Agrarian Policy and Food Minister Mykola Solskyi visited Latvia to further discuss the proposal and examine the country’s ports and logistics infrastructure. Tristan Bove, Fortune, 10 May 2022 But Western nations have long been worried about situations in which cyberattacks related to a localized conflict, if conducted recklessly, could spill into civilian infrastructure. Kevin Collier, NBC News, 10 May 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'infrastructure.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of infrastructure

1927, in the meaning defined at sense 2

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The first known use of infrastructure was in 1927

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Last Updated

13 May 2022

Cite this Entry

“Infrastructure.” Dictionary, Merriam-Webster, Accessed 19 May. 2022.

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