1
: a retaking possession
especially : entry by a lessor on leased premises on the tenant's failure to perform the conditions of the lease
2
: a second or new entry
3
: a playing card that will enable a player to regain the lead
4
: the action of reentering the earth's atmosphere after travel in space

Examples of reentry in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Its flagship course, The Challenge, combines career readiness, personal development, reentry planning and entrepreneurship. — Brian Maass, CBS News, 16 Oct. 2026 The Houthis’ reentry into the regional conflict in August took place alongside a shift in their political narrative, which increasingly centered on their long-standing adversary, Saudi Arabia. — Laurent Bonnefoy, The Conversation, 14 Oct. 2026 Three flights followed in less than a year, each reaching space, and each ending with Ship lost on reentry. — Andrew Jones, Space.com, 14 Oct. 2026 Congress should fully fund federal prisons so the bureau is adequately staffed and equipped to safely prepare incarcerated men and women for reentry and reduce further instances of crime. — Scott Peyton, Washington Post, 8 Oct. 2026 See All Example Sentences for reentry

Word History

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of reentry was in the 15th century

Browse Nearby Words

Cite this Entry

“Reentry.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reentry. Accessed 17 Oct. 2026.

Kids Definition

1
: a second or new entry
2
: the action of reentering the earth's atmosphere after travel in space

Medical Definition

plural reentries
: a cardiac mechanism that is held to explain certain abnormal heart actions (as tachycardia) and that involves the transmission of a wave of depolarization along an alternate pathway when the original pathway is blocked with return of the impulse along the blocked pathway when the alternate pathway is refractory and then transmission along the open pathway resulting in an abnormality

Legal Definition

: a retaking possession of property by a lessor or grantor in exercise of the right to do so upon the failure of the lessee or grantee to fulfill a covenant or condition see also power of termination at power sense 2b

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