1) Assure 2) Brand of nutrition shakes 3) Check again 4) Cinch 5) Clinch 6) Confirm 7) Diet supplement 8) Dietary supplement 9) French word used in English 10) Guarantee 11) Guard 12) Insure 13) Leave no doubt 14) Lock up 15) Make certain 16) Make certain of 17) Make certain of something 18) Make safe 1) Assure 2) Guarantee 3) Insure 4) Lock in 5) Proofread 6) See to it 
• (v. t.) To betroth. • (v. t.) To make sure. See Insure.
[Verb] To make sure that something is done or takes place.
A nutritional drink that may help people who cannot get everything they need in their diet from foods and other drinks. It may be taken by mouth or given through a small tube inserted through the nose into the stomach or the small intestine. It may also be given through a small tube that is put into the stomach or intestinal tract through an openin...
En·sure' transitive verb 1. To make sure. See Insure . 2. To betroth. [ Obsolete] Sir T. More. 
insure 4 assure 3 secure verb make certain of; `This nest egg will ensure a nice retirement for us`; `Preparation will guarantee success!`
to secure or guarantee: This letter will ensure you a hearing. · to make sure or certain: measures to ensure the success of an undertaking. · to make secure or safe, as from harm. · insure (defs. 1–3).
[Scientific terms] make certain of