‘See off’ implies going with someone physically, not just saying goodbye from afar.

Physical Presence

‘See off’ is more personal and less formal than a farewell party; it's usually a smaller, intimate group.

Not a Farewell Party

Seeing someone off can be emotional; it often signifies an important change or long separation.

In the context of overcoming, 'see off' reflects an active effort to get rid of something, like an illness.

Seeing off an illness or problem suggests a process, not an immediate result.

'See off' indicates a successful outcome in competition; it's a way to say 'win against' someone.

Using 'see off' often suggests the end of a contest or a definitive victory.