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Synonyms

overdose

American  
[oh-ver-dohs, oh-ver-dohs, oh-ver-dohs] / ˈoʊ vərˌdoʊs, ˈoʊ vərˌdoʊs, ˌoʊ vərˈdoʊs /

noun

overdosed, overdosing
  1. OD.


overdose British  

noun

  1. (esp of drugs) an excessive dose

"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

verb

  1. to take an excessive dose or give an excessive dose to

"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

Other Word Forms

Etymology

Origin of overdose

First recorded in 1680–90; over- + dose

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Initially saddled with $500 million of debt following the star’s 2009 death from an anesthesia overdose, the estate turned around its financial position with publishing-rights sales, streaming revenue and the Broadway show.

From The Wall Street Journal • Apr. 22, 2026

But investigations found he had been accidentally poisoned with an overdose of vitamin D that had been prescribed for growing pains.

From BBC • Apr. 16, 2026

Colby said it is important for people to understand that fentanyl cannot be absorbed through contact, so that they are not fearful to intervene when witnessing an overdose.

From Los Angeles Times • Feb. 24, 2026

The ongoing phase II trial is designed to determine whether adding fomepizole to standard acetylcysteine treatment can reduce liver damage in patients at high risk after acetaminophen overdose.

From Science Daily • Jan. 18, 2026

“Mom. It’s a citrus tree nursery. The worst thing that could happen to me is I’d overdose on vitamin C.”

From "Tangerine" by Edward Bloor

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