| guaranteed(adjective, feature, characteristic, detail, assurance) |
| invention(noun, creation, alteration, novelty) |
| actuality(noun, truth, fact, reality, conviction) |
| certified(adjective, feature, characteristic, detail, assurance) |
| design(noun, creation, alteration, invention, novelty) |
| improvement(noun, progress, advancement, betterment) |
| modification(noun, creation, alteration, invention, novelty) |
| safe(adjective, feature, characteristic, detail, assurance) |
| assured(adjective, feature, characteristic, detail, assurance) |
| capable(adjective, feature, characteristic, quality, benefit) |
| ensure(verb, feature, action, guarantee, conviction) |
| free from risk(expression, feature, characteristic, detail, assurance) |
| guarantee(verb, adjective, feature, action, characteristic) |
| guaranty(verb, feature, action, guarantee, conviction) |
| progress(noun, improvement, advancement, betterment) |
| tenacity(noun, strength, persistence, steadiness) |
| adequate(adjective, feature, characteristic, quality, benefit) |
| advance(noun, progress, improvement, advancement, betterment) |
| advancement(noun, progress, improvement, betterment) |
| amenable(adjective, feature, characteristic, detail) |