insure (v.)

• arm
• armor
• ascertain
• assure
• attest
• back
• bless
• bond
• certify
• champion
• cinch
• clinch
• cloak
• confirm
• copyright
• cover
• cushion
• decide
• defend
• determine
• endorse
• ensure
• establish
• fence
• fend
• fix
• guarantee
• guard
• harbor
• keep
• nestle
• patent
• police
• protect
• reassure
• register
• safeguard
• screen
• secure
• settle
• shelter
• shield
• shroud
• sign
• sponsor
• undersign
• underwrite
• warrant