| continuation(noun, keep, line, spread, care) |
| continuance(noun, increase, keep, line, spread) |
| prolongation(noun, increase, keep, line, spread) |
| endurance(noun, period, extension, persistence, continuation) |
| protraction(noun, run, extension, endurance, persistence) |
| lengthening |
| extension(noun, endurance, persistence, continuation, preservation) |
| preservation(noun, increase, keep, line, spread) |
| immortalization |
| persistence(noun, event, period, extension, continuance) |
| maintenance(noun, keep, spread, care, protection) |
| continuity(noun, increase, line, period, extension) |
| run |
| duration(noun, event, run, period, extension) |
| keeping(noun, keep, spread, care, supply) |
| lengthiness |
| permanence(noun, run, extension, durability, duration) |
| perpetuate |
| perpetuity(noun, durability, immortality, permanence, perpetuity) |
| propagation(noun, extension, persistence, continuation, preservation) |