Register is defined as to sign up, sign in or enroll.
To guarantee (a product).
Protect is defined as to defend or guard from danger or loss.
To undertake to do, accomplish, or ensure (something) for another:
Guard is defined as to keep safe, protect or cover.
To protect against or keep free from loss, damage, etc.; insure
To make sure or certain; insure:
To secure is to firmly attach something, to take action to make an area safe or to obtain something that you have been seeking.
To make sure of
To render certain
To understand; comprehend:
Check means to test, examine, compare or inspect something to see if it is as it should be.
be careful or certain to do something; make certain of something
Control is defined as to command, restrain, or manage.
Find another word for insure. In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for insure, like: register, warrant, protect, underwrite, guarantee, assure, cover, guard, indemnify, ensure and secure.