/ fraʊn; NAmE / verb , noun
■ verb
frown (at sb/sth) to make a serious, angry or worried expression by bringing your eyebrows closer together so that lines appear on your forehead :
[ v ]
What are you frowning at me for?
She frowned with concentration.
[also v speech ]
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PHRASAL VERBS
- frown on / upon sb/sth
■ noun
[ usually sing. ] a serious, angry or worried expression on a person's face that causes lines on their forehead :
She looked up with a puzzled frown on her face.
a slight frown of disapproval / concentration, etc.
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WORD ORIGIN
late Middle English : from Old French froignier , from froigne surly look, of Celtic origin.