Truncation allows you to search for a root form of a word and pick up any ending. To use truncation, simply add the asterisk * sign to the end of any root form of a word. Truncation broadens your search.
For example,
- wom* > woman, women, woman's, women's
- famil* > family, families, familial
- revolution* > revolutions. revolutionary
- biograph* > biography, biographical