A conjunction used to add something to what was just said — 'and (also)', 'in addition to that'.
ご飯と味噌汁、それと漬物で十分です。
Rice, miso soup, and pickles are enough.
それと、明日の会議の資料を忘れずに持ってきてください。
Also, please don't forget to bring the materials for tomorrow's meeting.
彼の案には賛成だ。それと、予算の見直しも必要だ。
I agree with his proposal. In addition, the budget needs to be reviewed.