I. noun
Date: 14th century
: acquaintance , cognizance
II. adjective
Date: 14th century
1. : having or reflecting knowledge, information, or intelligence
2.
a. : shrewdly and keenly alert : astute
a knowing observer
b. : indicating possession of exclusive inside knowledge or information
a knowing smile
3. : cognitive
4. : deliberate
knowing interference in the affairs of another
• know·ing·ly adverb
• know·ing·ness noun