Matching an arbitrary, user-defined text entry string (or regular expression) against a fixed internal list of natural language expressions, possibly using word equivalent, alternate spelling, abbreviation or part-of-speech substitution tables, and other lexical resources, to increase the recall and precision of the matching algorithm
Retrieving any asserted associations between a fixed list of terminology expressions in one language and translations in another natural language
Retrieving any asserted associations between a fixed list of terminology expressions, and entities in a concept system or ontology (information science)
Retrieving any directly asserted, or the best approximate indirectly inferrable, associations between concepts in an ontology and entities in one or more external resources (e.g. libraries of images, decision support rules or statistical classifications)