Synonyms for assure

Verb

1. guarantee, ensure, insure, assure, secure

usage: make certain of; "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!"

2. assure, tell, affirm, verify, assert, avow, aver, swan, swear

usage: inform positively and with certainty and confidence; "I tell you that man is a crook!"

3. assure, persuade

usage: assure somebody of the truth of something with the intention of giving the listener confidence; "I assured him that traveling to Cambodia was safe"

4. see, check, insure, see to it, ensure, control, ascertain, assure, verify

usage: be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product"

5. reassure, assure, calm, calm down, quiet, tranquilize, tranquillize, tranquillise, quieten, lull, still

usage: cause to feel sure; give reassurance to; "The airline tried to reassure the customers that the planes were safe"

6. promise, assure, declare

usage: make a promise or commitment