2frown verb
frowns; frowned; frown·ing [no obj] : to make a frown in anger, concentration, etc.
▪ She was frowning when she entered the room, so I knew that she was annoyed about something.
▪ She was frowning when she entered the room, so I knew that she was annoyed about something.
frown on/upon [phrasal verb]
frown on/upon (something) : to disapprove of (something)
▪ The company frowns on dating among employees. ▪ Public expressions of affection are frowned upon in many cultures.
▪ The company frowns on dating among employees. ▪ Public expressions of affection are frowned upon in many cultures.
— frown·ing·ly 
/ˈfraʊnɪŋli/ adverb
▪ She stared frowningly.
/ˈfraʊnɪŋli/ adverb ▪ She stared frowningly.
