verb (used with object)
verb (used without object)
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OTHER WORDS FROM stiffeno·ver·stiff·en, verbun·stiff·ened, adjective
Words nearby stiffen
Example sentences from the Web for stiffen
The embrace caused Susskind to stiffen up “like an unwilling virgin,” he later said.
She would break down to some degree, and then stiffen back up.
"No," he replied; and his face seemed to stiffen, and he moved a little away from Katherine Hunt.A Sister of the Red Cross|Mrs. L. T. Meade
Indignation and resentment were good things to stiffen a man's back.The Money Master, Complete|Gilbert Parker
For a second I realise that it is the track of a torpedo, and I stiffen myself to receive the explosion.'Green Balls'|Paul Bewsher
Stiffen by pasting them on cardboard; then cut out the men, dogs, and sled more carefully in detail.Little Folks' Handy Book|Lina Beard
England accepted a few invasions and conquests and then had to stiffen up and work the material into a mold.Our Part in the Great War|Arthur Gleason