• synonyms


verb (used with object), e·quat·ed, e·quat·ing.
  1. to regard, treat, or represent as equivalent: We cannot equate the possession of wealth with goodness.
  2. to state the equality of or between; put in the form of an equation: to equate growing prosperity with the physical health of a nation.
  3. to reduce to an average; make such correction or allowance in as will reduce to a common standard of comparison.
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Origin of equate

1375–1425; late Middle English < Latin aequātus (past participle of aequāre to make equal), equivalent to aequ(us) equal + -ātus -ate1
Related formse·quat·a·bil·i·ty, noune·quat·a·ble, adjectiveun·e·quat·ed, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for equatable


verb (mainly tr)
  1. to make or regard as equivalent or similar, esp in order to compare or balance
  2. maths to indicate the equality of; form an equation from
  3. (intr) to be equal; correspond
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Derived Formsequatable, adjectiveequatability, noun

Word Origin

C15: from Latin aequāre to make equal
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

Word Origin and History for equatable



early 15c., from Latin aequatus "level, levelled, even," past participle of aequare "make even or uniform, make equal," from aequus "level, even, equal" (see equal (adj.)). Earliest use in English was of astrological calculation, then "to make equal;" meaning "to regard as equal" is early 19c. Related: Equated; equating.

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Online Etymology Dictionary, © 2010 Douglas Harper