Definition of lethal
- death by lethal injection
- lethal chemicals
- a lethal attack on his reputation
- a lethal fastball
- a lethal rum punch
a potentially lethal dose of a drug
He was sentenced to death by lethal injection.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'lethal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: circa 1604See Words from the same year
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having a quality expressive of sadness
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