0 present participle of assure
1 to tell someone confidently that something is true, especially so that they do not worry:
The unions assured the new owners of the workers' loyalty to the company.
[ + speech ] "Don't worry, your car will be ready tomorrow," the mechanic assured him.
[ + (that) ] She assured him (that) the car would be ready the next day.
The prime minister assured the electorate (that) taxes would not be increased after the election.
You can rest assured (= feel confident) that I shall be there as promised.
2 to cause something to be certain:
The play's popularity has been assured by the critics' rave reviews.
3 (of an organization) to promise to pay an amount of money to a person or their family if that person becomes ill, gets injured, or dies, in return for small regular payments
The police have assured the public that the escaped prisoners will not evade recapture for long.
The Foreign Secretary assured anti-federalist MPs that he would not agree to anything which limited British sovereignty.
"Rest assured, Mrs. Cooper" said the police officer. "We will find your son for you."
Journalists may enter the danger zone but unfortunately we cannot assure their safety.
A last-minute deal assured the company's future.
A second goal moments from the end assured us of a place in the final.
