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Encyclopedias & Dictionaries online
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Keyword Search Rules for the Library Catalog and Databases
Using AND/OR/NOT (Boolean Search Operators)
Use AND to focus search and combine different aspects of your topic.
Example: vegetarianism and environment
Use OR to expand your search and find synonyms/related terms.
Example: global warming or climate change
Use NOT to exclude a word or phrase from your search
Example: emissions trading not United States
Additional Search Tips
"Phrase search" - Use quotation marks" " to search for a particular phrase.Example:"greenhouse gas emissions"
Truncation * - Use an asterisk to find variations of a word. Put an asterisk following the root of the word to find all variations of that word, including singular and plural.Example:environment* (finds environments, environmental, environmentalist, etc.)
(Grouping/Nesting Keywords) - Use parentheses ( ) as a way to group all your search terms together.Example:(climate change or global warming) and population growth
See the Basic Search Tips guides for more information, including examples.
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First Year Education Librarian