WordWeb Online

1. Be careful or certain to do something; make certain of something
   "insure that the curtains are closed"
   - see, check, see to it, ensure, control, ascertain, assure
    
2. Make certain in the future
   "Preparation will insure success!"
   - guarantee, ensure, assure, secure
    
3. Protect by insurance
   - cover, underwrite
    
4. Take out insurance for

Sounds like: ensure

Derived forms: insured, insures, insuring

See also: insurance, insurer

Type of: guarantee, protect, verify, warrant

Encyclopedia: Insure