knowing
adjective /ˈnəʊɪŋ/
/ˈnəʊɪŋ/
[usually before noun]- showing that you know or understand about something that is supposed to be secret
- a knowing smile
- The man at reception gave her the key with a knowing look.
Oxford Collocations DictionaryKnowing is used with these nouns:- glance
- grin
- look
- …