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tr.v. ex·tin·guished, ex·tin·guish·ing, ex·tin·guish·es
1. To cause (a fire or light) to stop burning or shining; put out.
2. To put an end to or make extinct; destroy: "Her death extinguished the dream of family that was closest to his heart" (Karen Lystra). See Synonyms at annihilate.
3. Psychology To bring about the extinction of (a conditioned response).

[Latin exstinguere : ex-, intensive pref.; see ex- + stinguere, to quench; see steig- in Indo-European roots.]

ex·tin′guish·a·ble adj.
ex·tin′guish·ment n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.extinguishable - capable of being extinguished or killed; "an extinguishable fire"; "hope too is extinguishable"
inextinguishable - difficult or impossible to extinguish; "an inextinguishable flame"; "an inextinguishable faith"
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His obituary stated, "There is scarcely one in the country who had acquired a greater notoriety than Doc Holliday, who enjoyed the reputation of being one of the most fearless men on the frontier, and whose devotion to his friends in the climax of the fiercest ordeal was in extinguishable.
Our candles soon to be lit, bright and flaming, yet small and all too extinguishable, will burn this wonderful early autumn evening, with many emotions:
Ginia Bellafante in the New York Times expressed skepticism about the effectiveness of "air[ing] societal grievances as carnival," when the magnitude of problems under capitalism are "not easily extinguishable by street theater" (2011, 1).