ensure meaning and definition

ENSURE verb

Definition of ensure (verb)

1. make certain of
   • "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!"
   • synonyms: assure, guarantee, insure, secure
2. 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"
   • synonyms: ascertain, assure, check, control, insure, see, see to it