I am just double checking doesnt a manor mean a castle?

3 answers

Not necessarily.

A manor can be the lands of an estate. It can also be the mansion on these lands. A castle is larger than a manor house.
A manor was, in medieval England, an agricultural estate owned by the lord of the manor, in part leased to and farmed by tenants.

I've seen it used to refer to a mansion or similarly large house, but not a castle.
Okay thank you very much.