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1. Work, especially manual labor, performed in return for a share in ownership, as of a home, or in the expectation of increasing the value of a property one has purchased.
2. Sustained effort; hard work: "Coming up with compelling plots is a little bit inspiration and a lot of sweat equity" (David Baldacci).
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
unreimbursed labor that increases the value of a property.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.