Pottery
Ceramics
A pottery container is pottery. It's ceramics.
とうき
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
もう使わないんだったら、白い陶器は全部誰かにあげちゃえば？
Why don’t you give away all these white ceramics if you don’t use them anymore?