A Hebrew word meaning son, boy. It has the more general meaning of child sometimes.

When preceded and followed by a name, it acts as "son of".

For example, Judah the son of Hur becomes Judah ben Hur.

The name Benjamin means "Son of the Right". The "ben" bit is "son of..."

Feminine form : bat
Masculine plural : banim
Definite conjuctive plural : B'nei as in B'nai B'rith.