Source:http://linkedlifedata.com/resource/umls/id/C0042926
MSH: The sum or the stock of words used by a language, a group, or an individual. (From Webster, 3d ed),CSP: collection of words or phrases employed by a language, group, individual or work in a field of knowledge.,NCI: The collection of words used by, understood by, or available for use by a person or group.