- An underlying base or foundation especially for an organization or system. (noun)
- The basic facilities, services, and installations needed for the functioning of a community or society, such as transportation and communications systems, water and power lines, and public institutions including schools, post offices, and prisons. (noun)
- The basic structure of an organization, system, etc (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
- The stock of fixed capital equipment in a country, including factories, roads, schools, etc, considered as a determinant of economic growth (noun)
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