Know

erkennen

(have sexual relations with)

kennen

(be acquainted or familiar with)

können

(have knowledge of)

können

(understand (a subject))

sich auskennen in

(understand (a subject))

wissen

(be justifiably certain or sure about (something true))

wissen

(have knowledge of)

wissen

(be informed about)

wüsse

(be justifiably certain or sure about (something true))

wüsse

(be acquainted or familiar with)

wüsse

(have knowledge of)