know A1

/no/ To have information or facts in your mind.

knowingness C2+

/ˈnoʊɪŋnəs/ the quality of seeming to know more than one reveals

afterknowledge C2+

/ˈæftərˌnɑlɪdʒ/ knowledge gained after an event; hindsight

knowledgeably C2+

/ˈnɑlɪdʒəbli/ in a manner showing knowledge or expertise