and; moreover; besides; as well as
Connects two clauses or items, adding emphasis that both are true or happen simultaneously. Often used in formal or written contexts, but also in everyday speech for emphasis.
He is smart and, moreover, hardworking.
This dish is delicious and, at the same time, healthy.
This product is inexpensive and, at the same time, high-performance.
He is a doctor and, moreover, a researcher.