| Answer | Crossword Clue |
|---|---|
| betterment | The act or process of improving something |
| perfection | The action or process of improving something until it is faultless or as faultless as possible |
| interpolation | the act or process of introducing something additional or extraneous between other parts. |
| passages | The act or process of moving through, under, over, or past something on the way from one place to another |
| passage | The act or process of moving through, under, over, or past something on the way from one place to another |
| closure | An act or process of closing something, esp. an institution, thoroughfare, or frontier, or of being closed |
| closures | An act or process of closing something, esp. an institution, thoroughfare, or frontier, or of being closed |
