As nouns the difference between coinsurance and copay
is that coinsurance is (us) the joint assumption of risk between the insurer and the insured party while copay is a copayment.
As a verb copay is
to jointly pay with another or others.
coinsurance
Alternative forms
* co-insurance
Noun
(US) The joint assumption of risk between the insurer and the insured party.
(international) The joint assumption of risk between multiple insurers.
See also
* coinsurer
* copayment
* deductible
copay
English
Verb
To jointly pay with another or others.