I. frown 1 /fraʊn/ BrE AmE verb [intransitive]
[ Date: 1300-1400 ; Language: Old French ; Origin: froignier ]
to make an angry, unhappy, or confused expression, moving your ↑ eyebrow s together:
She frowned as she read the letter.
frown at
Mattie frowned at him disapprovingly.
frown on/upon somebody/something phrasal verb
to disapprove of someone or something, especially someone’s behaviour:
Even though divorce is legal, it is still frowned upon.
II. frown 2 BrE AmE noun [countable usually singular]
the expression on your face when you move your ↑ eyebrow s together because you are angry, unhappy, or confused
with a frown
He looked at her with a puzzled frown.