infrastructure

noun in·fra·struc·ture \ ˈin-frə-ˌstrək-chər , -(ˌ)frä- \
Updated on: 14 Nov 2017

Definition of infrastructure

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

infrastructural

play \ˈin-frə-ˌstrək-chə-rəl, -ˌstrək-shrəl, -(ˌ)frä-\ adjective

Examples of infrastructure in a Sentence

  1. More money is needed to save the crumbling infrastructure of the nation's rural areas.

  2. We need to spend more money on maintaining and repairing infrastructure.

Recent Examples of infrastructure from the Web

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.

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.

First Known Use of infrastructure

1927

Other Civil Engineering Terms


INFRASTRUCTURE Defined for English Language Learners

infrastructure

noun

Definition of infrastructure for English Language Learners

  • : the basic equipment and structures (such as roads and bridges) that are needed for a country, region, or organization to function properly



Seen and Heard

What made you want to look up infrastructure? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to remove or wipe out

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!