• synonyms


verb (used with object), op·ti·mized, op·ti·miz·ing.
  1. to make as effective, perfect, or useful as possible.
  2. to make the best of.
  3. Computers. to write or rewrite (the instructions in a program) so as to maximize efficiency and speed in retrieval, storage, or execution.
  4. Mathematics. to determine the maximum or minimum values of (a specified function that is subject to certain constraints).
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verb (used without object), op·ti·mized, op·ti·miz·ing.
  1. to be optimistic.
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Also especially British, op·ti·mise.

Origin of optimize

First recorded in 1835–45; optim(um) + -ize
Can be confusedmaximize optimize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for optimised

Historical Examples of optimised

  • Several wide tables have been optimised for wide (browser) windows and may not look optimal in narrow windows or other formats.

    A Dictionary of Arts, Manufactures and Mines

    Andrew Ure

British Dictionary definitions for optimised



  1. (tr) to take the full advantage of
  2. (tr) to plan or carry out (an economic activity) with maximum efficiency
  3. (intr) to be optimistic
  4. (tr) to write or modify (a computer program) to achieve maximum efficiency in storage capacity, time, cost, etc
  5. (tr) to find the best compromise among several often conflicting requirements, as in engineering design
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Derived Formsoptimization or optimisation, noun
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 optimised



1844, "to act as an optimist," back-formation from optimist. Meaning "to make the most of" is first recorded 1857. Related: Optimized; optimizing.

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Online Etymology Dictionary, © 2010 Douglas Harper