coinsure

1 of 2

verb

co·​in·​sure ˌkō-ən-ˈshu̇r How to pronounce coinsure (audio)
coinsured; coinsuring; coinsures

transitive verb

: to insure jointly
coinsurer noun

coinsurer

2 of 2

noun

co·​in·​sur·​er
¦kō-ən-¦shu̇r-ər, 
-¦shər-
: one that assumes liability as an insurer jointly with another : one subject to penalty under a coinsurance clause

Word History

Etymology

Noun

co- + insurer

First Known Use

Verb

1886, in the meaning defined above

Time Traveler
The first known use of coinsure was in 1886

Rhymes for coinsure

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Browse Nearby Words

coinsurance
coinsure
coinsurer
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Cite this Entry

“Coinsure.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coinsure. Accessed 8 Jul. 2026.

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Legal Definition

coinsure

transitive verb
co·​in·​sure ˌkō-in-ˈshu̇r How to pronounce coinsure (audio)
: to insure jointly
coinsurer noun
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