To be convinced of the truth of; to be fully assured of; as, to know things from information.

To be assured; to feel confident.

knew known

be aware of the truth of something; have a belief or faith in something; regard as true beyond any doubt; "I know that I left the key on the table"; "Galileo knew that the earth moves around the sun"

have sexual intercourse with; "This student sleeps with everyone in her dorm"; "Adam knew Eve"; "Were you ever intimate with this man?"

know the nature or character of; "we all knew her as a big show-off"