My friend's last name is Grossmann.

The Grossmanns are a well-known family in the town.

Mr. Grosser is a well-known businessman in the city.

The Grossers are coming to town.

My friend's last name is Grossnickle.

The Grossnickles are a family of talented musicians.

My friend's last name is Grosskopf.

The Grosskopfs are a well-known family in the town.

GrossOne is a mathematical term used to represent a large number.

Grossone is a mathematical concept used in the theory of infinite numbers.