Crossword Clue:

used to express sudden pain

AnswerCrossword Clue
WINCESReacts to a sudden pain
FLINCHReflex response to a sudden pain
GASPEDReacted to a sudden pain, say
PSHAWSInterjections used to express irritation or disbelief
ALLELUIAWord used to express thanks to God
MAYESTWord used to express possibility, in the Bible