Williamson rhymes with:
williamsen, williamsen, williamsen, williamsen, abrahamson, abramson, adamson, malcolmson, malcomson, williamsen
Williamson sounds like:
wilhelmsen, willemsen, williamsen, willingham
williamsen, williamsen, williamsen, williamsen, abrahamson, abramson, adamson, malcolmson, malcomson, williamsen
wilhelmsen, willemsen, williamsen, willingham