I. in-ˈshu̇r-ən(t)s also ˈin-ˌ noun
Date: 1651
1.
a. : the business of insuring persons or property
b. : coverage by contract whereby one party undertakes to indemnify or guarantee another against loss by a specified contingency or peril
c. : the sum for which something is insured
2. : a means of guaranteeing protection or safety
the contract is your insurance against price changes
II. adjective
Date: 1954
: being a score that adds to a team's lead and makes it impossible for the opposing team to tie the game with its next score
an insurance run