v.
Pronunciation: ' sti-f ə n
Function: verb
Inflected Form: stiff · ened ; stiff · en · ing \ ' sti-f ə -ni ŋ , ' stif-ni ŋ \
Date: 15th century
transitive verb : to make stiff or stiffer
intransitive verb : to become stiff or stiffer
– stiff · en · er \ ' sti-f ə -n ə r, ' stif-n ə r \ noun