A thesaurus is one among several types of controlled vocabulary used in this context.

Such are the vagaries of natural language and controlled vocabulary, both of which have their places in the business world.

The distinctions above are enforced in the controlled vocabulary of standards organizations.

The use of controlled vocabulary ensures that everyone is using the same word to mean the same thing.

Index terms make up a controlled vocabulary for use in bibliographic records.

Index terms can either come from a controlled vocabulary or be freely assigned.

"Accuracy" was not a controlled vocabulary in the selected analytic databases.

In this case, the tag is part of a controlled vocabulary.

These experts understand controlled vocabularies and are able to find information that cannot be located by full text search.

An alternative is assignment indexing where index terms are taken from a controlled vocabulary.