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Drexel Library

Systematic Reviews

Truncation and Wildcards

Truncation allows you to broaden your search by including alternative word endings and spellings. Most often asterisk (*) is the truncation symbol for databases and placed at the end of the root word.

For example, nurs* would find nurse, nurses, and nursing.


Wildcard symbols can broaden a database search by including alternative spellings within a word.

  • Asterisk wildcard (*) - Is used between words where variations may be possible. Example: "evidence* practice" can return results such as, "evidence-based practice".
  • Question mark wildcard (?) - Is used to replace an unknown character. Example: wom?n will show results for women or woman.
  • Hashtag wildcard (#) - Wildcards allow you to broaden your search by including alternative spellings within a word. So is colo#r would bring results for color and colour.

Check in specific databases to see the suggested wildcard and truncation methods: