Knighten rhymes with:
knighton, breighton, brighten, brighton, criton, enlighten, frighten, guyton, heighten, iten, knighton, lighten, litan, reitan, reiten, tighten, titan, triton, whiten
Knighten sounds like:
keniston, kennington, kingdom, kingdon, kingston, kington, kinston, knighton, knockdown