Matched context for toughness and toughness

The page lists matched contexts for toughness and toughness.

Share - toughness	Share - toughness	Phrase
40.11%	40.11%	{toughness or toughness} [cause] material
40.11%	40.11%	{toughness or toughness} [cause] resist
9.52%	9.52%	improve {toughness or toughness} [perform operation]
5.43%	5.43%	high [size] {toughness or toughness}
4.80%	4.80%	control {toughness or toughness}