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verb (used with object), ig·nit·ed, ig·nit·ing.
  1. to set on fire; kindle.
  2. Chemistry. to heat intensely; roast.
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verb (used without object), ig·nit·ed, ig·nit·ing.
  1. to take fire; begin to burn.
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Origin of ignite

1660–70; < Latin ignītus (past participle of ignīre to set on fire, ignite), equivalent to ign(is) fire + -ītus -ite2
Related formsig·nit·a·ble, ig·nit·i·ble, adjectiveig·nit·a·bil·i·ty, ig·nit·i·bil·i·ty, nounnon·ig·nit·a·bil·i·ty, nounnon·ig·nit·a·ble, adjectivenon·ig·nit·i·bil·i·ty, nounnon·ig·nit·i·ble, adjectivere·ig·nite, verb (used with object), re·ig·nit·ed, re·ig·nit·ing.un·ig·nit·a·ble, adjectiveun·ig·nit·ed, adjectiveun·ig·nit·ing, adjective

Synonyms for ignite

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1. See kindle1.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for ignited

kindle, burn, inflame, fire, light, enkindle

Examples from the Web for ignited

Contemporary Examples of ignited

Historical Examples of ignited

British Dictionary definitions for ignited


  1. to catch fire or set fire to; burn or cause to burn
  2. (tr) chem to heat strongly
  3. (tr) to stimulate or provokethe case has ignited a nationwide debate
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Derived Formsignitable or ignitible, adjectiveignitability or ignitibility, noun

Word Origin for ignite

C17: from Latin ignīre to set alight, from ignis fire
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 ignited



1660s, from Latin ignitus, past participle of ignire "set on fire," from ignis "fire" (see igneous). Attested earlier as an adjective (1550s). Related: Ignited; igniting.

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Online Etymology Dictionary, © 2010 Douglas Harper