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[ik-spend] /ɪkˈspɛnd/
verb (used with object)
to use up:
She expended energy, time, and care on her work.
to pay out; disburse; spend.
late Middle English
1400-50; late Middle English < Latin expendere to weigh out, lay out, pay
Related forms
expender, noun
overexpend, verb
preexpend, verb (used with object)
unexpended, adjective
well-expended, adjective
Can be confused
expand, expend (see synonym study at expand)
1. consume, empty. See spend. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for expending
  • The hunt is on for low cost, high efficiency ways to keep the panels clean without expending more energy in the process.
  • Thus, altruistic individuals can prosper, despite the disadvantage of expending precious resources to produce the polymer.
  • The system has lost entropy, but without expending any energy, creating a seeming violation of the second law of thermodynamics.
  • The traveling bumblebee needs to visit a number of flowers everyday, while expending as little energy as possible.
  • Collect sunlight and extract useful forms of energy from it, rather than expending energy on air conditioning.
British Dictionary definitions for expending


verb (transitive)
to spend; disburse
to consume or use up
Derived Forms
expender, noun
Word Origin
C15: from Latin expendere, from pendere to weigh
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
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Word Origin and History for expending



early 15c., from Latin expendere "pay out, weigh out money," from ex- "out" (see ex-) + pendere "to pay, weigh" (see pendant). Related: Expended; expending.

Online Etymology Dictionary, © 2010 Douglas Harper
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