▪ make certain of obtaining or providing (something): "she would ensure him a place in society"Similarsafeguardprotectguardshieldshelterfortifymake invulnerableassuresecuremake safewatch overlook aftertake care of
▪ make sure that (a problem) shall not occur:"only by researching stocks thoroughly can a client ensure against being misled"
Word Originlate Middle English (in the senses ‘convince’ and ‘make safe’): from Anglo-Norman French enseurer, alteration of Old French aseurer, earlier form of assurer (see assure). Compare with insure.