Q: Does "occasion" have the same meaning in the following two sentences?

Having people round for dinner was always quite an occasion at our house.

It was needed only on special occasions.

OPTIONS:
- different meanings
- the same meaning

A: the same meaning

Q: Does "addition" have the same meaning in the following two sentences?

The addition of a leap day every four years.

The addition of cinnamon improved the flavor.

OPTIONS:
- different meanings
- the same meaning

A: different meanings

Q: Does "root" have the same meaning in the following two sentences?

The love of money is the root of all evil.

Communism's Russian root.

OPTIONS:
- different meanings
- the same meaning

A:
the same meaning