stiffen-v; 2 Senses

Sense Number 1: make or become stiff

Examples:
Putting pressure on these fingers cause the shoulders to stiffen.
Seeing her instantly made Marc's body stiffen.
Her shoulder stiffened.
If necessary, add additional flour to stiffen the dough.
Brad felt the tube stiffen with pressure.
She saw Arabella stiffen at the quip.
Bitds are much easier to pose before they start to stiffen.

Mappings:
VerbNet: other_cos-45.4
FrameNet: NP
PropBank: stiffen.01
WordNet 3.0 Sense Numbers: 1, 2

Sense Number 2: make more strict

Examples:
The republican measures will stiffen rules for recipients of funds.
It had sued EPA to stiffen the agency's 1990 Acid Rain program.
He planned to stiffen penalties for on air indecency.
Occasional suspension enforcement was stiffened.
Lawmakers are looking at stiffening penalties for counterfeiters.

Mappings:
VerbNet: NM
FrameNet: NP
PropBank: stiffen.01
WordNet 3.0 Sense Numbers: 3