WordNet 3.0 Copyright © 2006 by Princeton University.
- 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. 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"
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See also: ensure (Dictionary)