| Answer | Crossword Clue |
|---|---|
| hardening | Make or become hard or harder |
| hardened | Having become or been made hard or harder |
| hardens | to make hard or harder; to strengthen, reinforce, toughen, or stiffen |
| harden | to make hard or harder; to strengthen, reinforce, toughen, or stiffen |
| solidify | Make or become hard or solid |
| solidifying | Make or become hard or solid |
| solidified | Make or become hard or solid |
| solidifies | Make or become hard or solid |
| wear | to make or become unfit or useless through hard or extended use |
