safeguard (n.)
- advocate
 - aegis
 - arm
 - armament
 - armor
 - assurance
 - backstop
 - bodyguard
 - buffer
 - bulwark
 - bumper
 - champion
 - clearance
 - cloak
 - conserve
 - contraceptive
 - convoy
 - copyright
 - cover
 - cushion
 - dashboard
 - defence
 - dodger
 - ensure
 - escort
 - fence
 - fender
 - flank
 - foresight
 - foresightedness
 - forethought
 - fuse
 - gentleman-at-arms
 - goggles
 - governor
 - guarantee
 - guard
 - guardrail
 - guardsman
 - handrail
 - harbor
 - haven
 - helmet
 - immunity
 - insulation
 - insurance
 - interlock
 - invulnerability
 - keep
 - lifeline
 - mask
 - measures
 - mudguard
 - nestle
 - pad
 - padding
 - palladium
 - pass
 - passport
 - patent
 - pilot
 - police
 - precaution
 - preserve
 - preventive
 - prophylactic
 - protection
 - providence
 - provision
 - register
 - risklessness
 - safe-conduct
 - safeness
 - safety
 - save
 - screen
 - security
 - shelter
 - shield
 - shroud
 - steps
 - surety
 - umbrella
 - visa
 - ward
 - windscreen
 - windshield
 - yeoman
 
safeguard (v.)
- advocate
 - arm
 - armor
 - assure
 - backstop
 - bless
 - buffer
 - bulwark
 - champion
 - cloak
 - conserve
 - convoy
 - copyright
 - cover
 - cushion
 - defend
 - ensure
 - escort
 - fence
 - fend
 - flank
 - fuse
 - guarantee
 - guard
 - harbor
 - insure
 - interlock
 - keep
 - mask
 - nestle
 - pad
 - pass
 - patent
 - pilot
 - police
 - preserve
 - protect
 - provision
 - register
 - save
 - screen
 - secure
 - shelter
 - shield
 - shroud
 - underwrite
 - visa
 - ward