From WordNet (r) 3.0 (2006):
assure
v 1: make certain of; "This nest egg will ensure a nice
retirement for us"; "Preparation will guarantee success!"
[syn: guarantee, ensure, insure, assure, secure]
2: inform positively and with certainty and confidence; "I tell
you that man is a crook!" [syn: assure, tell]
3: 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: 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" [syn: see, check, insure, see to it,
ensure, control, ascertain, assure]
5: cause to feel sure; give reassurance to; "The airline tried
to reassure the customers that the planes were safe" [syn:
reassure, assure] [ant: vex, worry]
6: make a promise or commitment [syn: promise, assure]