insure Definition

insure
verb insured, insuring

tr & intr
1. To arrange for the payment of an amount of money in the event of the loss or theft of or damage to (property) or injury to or the death of (a person), etc by paying regular amounts of money to an insurance company.

Thesaurus: protect, cover, guarantee, warrant, assure, safeguard, underwrite, indemnify.
2. To take measures to try to prevent (an event leading to loss, damage, difficulties, etc).
(chiefly N Amer)
intr
3. To provide insurance; to underwrite.

Derivative: insurable
adj

Etymology: 15c variant of ensure.