assure
verb
make certain of
“This nest egg will ensure a nice retirement for us”
“Preparation will guarantee success!”
inform positively and with certainty and confidence
“I tell you that man is a crook!”
Synonymstellassure somebody of the truth of something with the intention of giving the listener confidence
“I assured him that traveling to Cambodia was safe”
be careful or certain to do something; make certain of something
“He verified that the valves were closed”
“See that the curtains are closed”
cause to feel sure; give reassurance to
“The airline tried to reassure the customers that the planes were safe”
Synonymsreassuremake a promise or commitment
Synonymspromise
Source: WordNet 3.1, Princeton University
