to make hard or harder to strengthen reinforce toughen or stiffen

to make hard or harder to strengthen reinforce toughen or stiffen
Crossword Clue
**We have found 2 answers to crossword clue "to make hard or harder to strengthen reinforce toughen or stiffen"**
**The Best Answer: 10/10**
Answer	Crossword Clue
hardens	to make hard or harder; to strengthen, reinforce, toughen, or stiffen
harden	to make hard or harder; to strengthen, reinforce, toughen, or stiffen

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.

to make hard or harder to strengthen reinforce toughen or stiffenCrossword Clue