reassure

verbs

cause to feel sure; give reassurance to
"The airline tried to reassure the customers that the planes were safe"
assure, reassure
is derived from
reassurance
antonym
worry
give or restore confidence in; cause to feel sure or certain
"I reassured him that we were safe"
reassure
is derived from
reassurance
is a type of (narrower)
assure somebody of the truth of something with the intention of giving the listener confidence
"I assured him that traveling to Cambodia was safe"
assure