stun ‧ ner /ˈstʌnə $ -ər/ BrE AmE noun [countable] informal
1 . someone or something that is very attractive, especially a woman:
Lucy was a real stunner.
2 . a situation or event that surprises you
stun ‧ ner /ˈstʌnə $ -ər/ BrE AmE noun [countable] informal
1 . someone or something that is very attractive, especially a woman:
Lucy was a real stunner.
2 . a situation or event that surprises you
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012