Answer | Crossword Clue |
---|---|
stiffen | become stiff or stiffer |
stiffen | to make stiff or stiffer |
stiffens | Make or become stiff or rigid |
stiffened | Make or become stiff or rigid |
hardens | to become harder, tougher, stiffer, etc. |
harden | to become harder, tougher, stiffer, etc. |