OR Operator

The OR operator is a Boolean search operator that allows you to retrieve all files containing either or both search terms/queries. It is often used to join similar, equivalent, or synonymous concepts. It is also used to search for antonyms and abbreviations.

blue OR red OR white

blue or red or white

Syntax

Semantics

Recommended Use

left_query OR right_query

(left_query) OR (right_query)

Where OR combined two search queries such as a term, phrase or another query.

For clarity, the queries can be placed between brackets. Please be aware that sometimes using brackets can influence the search results.

The more terms you combine using OR, the more files you will find. It will broaden your search.

left_query OR NOT right_query

Where OR is added to the NOT operator to combine two queries.

Narrow your search and exclude terms often connected to your search.

"OR"

Wrap the OR operator in double quotes, so it loses its special meaning.

If you want to search for the word 'or'.

Examples

Example of Query

Results

Results Explained

car OR transportation

only 'car'

only 'transportation'

both 'car' & 'transportation'

 

u.s OR us

Only 'u.s', only 'us', or files with both instances.

The search result 'u.s' can be followed by a - not highlighted - dot.

e mail OR email

only 'e mail', 'email' or 'e-mail'

only 'e mail' and 'e-mail'

only 'email' and 'e-mail'

only 'e mail' and 'email'

'e mail', 'email', and 'e-mail'

Phrase query combined with term. Hyphenated instances of both phrase and term are also found.

 

apple OR NOT pear

Files that contain the term 'apple' (the term 'pear' can be present in the file, but not highlighted) and files that do not contain the term 'pear' (no hits, since 'apple' is not present either).

 

Tip : If you have a very long OR query like 'aa* or ac* or ad* or ae* or af* or ag* or ah* or ai* or aj* or ak*', use the Quorum operator instead to improve performance: ' 1 of {aa*, ac*, ad*, ae*, af*, ag*, ah*, ai*, aj*, ak*}'.