There are several types of subject headings. Subject headings are used to file and retrieve documents. Term headings are logical units of knowledge and can be considered the most basic type of semantic classification. Nouns are the most concrete part of speech, and adjectives rarely convey meanings that are useful for indexing. Scope notes clarify the ambiguities of terms and help the user understand the field of knowledge. Listed below are the three most popular types of subject headings.
Macmillan Thesaurus
The Macmillan Thesaurus was designed by lexicographer Diane Nicholls. It was conceived with a goal of integrating thesaurus with the Macmillan Dictionary. This is how the thesaurus evolved over time: through organic growth, the Macmillan Thesaurus merged with the dictionary and became more comprehensive over time. Today, the Macmillan Thesaurus offers links to antonyms and synonyms, as well as quizzes that help users choose the correct word.
The Macmillan Thesaurus offers an online version that includes synonyms, antonyms, and related words. This free resource can be searched by entering the word in the search box. The Macmillan Dictionary and Thesaurus provide a global support system for learners around the world. With over one million indexed words, this online dictionary supports over half a dozen languages. The app has a dark and light theme, as well as cross-referencing to online and offline dictionaries. The free version of the app doesn’t include any in-app purchases or advertisements.
Oxford English Dictionary
The Oxford English Dictionary (OED) is a reference book for the English language. It was first published in 1828. It was initially published in one or two volumes. However, because of the popularity of the dictionary, the authors eventually decided to make it available in 15 volumes. This meant that users would need to search three different locations for the same definition. The new edition would include new words as well as additions to the dictionary. Fortunately for users, Oxford University Press has compiled the new material with the previously published supplement.
The OED contains a wealth of evidence of real English usage. OED quotations from many centuries demonstrate the meaning of a word. OED evidence is taken from the massive 21st century English corpus of 2.3 billion words. This evidence links words with their senses in sentences. It also includes examples of sentence usage. As such, the OED is an invaluable resource for English learners and writers. But what makes OED such an impressive reference work is its wide breadth of evidence.
Cogito Studio Express
The Cogito Studio Express Thesaurus is an ontology editor designed to help organizations leverage domain-specific thesauri for entity extraction. With the Express version, multiple users can contribute daily to a multilingual thesaurus. In addition to enriching existing thesauri, the product can also import new ones. The design and development process are made easy, allowing for the development of a powerful text analytics solution with minimal operational costs.
Its advanced artificial intelligence technology uses millions of concepts embedded within its knowledge graph to disambiguate words from their meanings in text. It uses proprietary machine learning algorithms to automatically enrich knowledge based on text, without the assistance of subject matter experts. Cogito’s extended native API simplifies integration and customization while maintaining high accuracy. Here are a few other benefits of the Cogito Studio Express Thesaurus:
Oxford English Thesaurus
If you’re looking for an English dictionary that offers a comprehensive collection of antonyms and synonyms, then you should consider purchasing the Oxford English Thesaurus. This comprehensive tool is designed for secondary school students and aims to extend vocabulary, improve spelling and punctuation, and inspire students to become confident writers. The new, redesigned centre section of the thesaurus is a particularly helpful feature. The centre section features convenient lists grouped by topic. It also includes lists of foreign words and archaic phrases.
The first modern English thesaurus was created in 1852 by Peter Mark Roget. It contains over half a million words and technical terms, and lists words alphabetically and conceptually. The Oxford English Dictionary contains over 500,000 words, with half a million technical terms. Other thesauri are created for a specific field, such as information retrieval systems or controlled vocabulary. But, if you need a word that is not in the Oxford English Thesaurus, you should buy a separate dictionary.
Roget’s Thesaurus
The concept of a thesaurus is nothing new. In fact, it’s been around for more than 150 years. Invented by a lexicographer named Peter Mark Roget, it has helped almost everyone who speaks English. In fact, you may have your very own copy of the Roget’s Thesaurus on your bookshelf, or you may have it open on your computer. But did you know that the thesaurus’ creation was actually inspired by the classification systems of animals, plants, and books? Using these ideas, Roget spent a great deal of time crafting an indexing system for his Thesaurus. This work has been widely used and has never been out of print.
The 1852 edition of Roget’s Thesaurus included a massive 2,000-page dictionary. However, the 1000 headings were not listed alphabetically. They were listed according to Roget’s classification system. For example, the first entry was Existence, which falls into the first class of the dictionary, Abstract Relations. In addition, Roget included an alphabetical index in the appendix, so that readers could use his thesaurus to search for synonyms for words they were looking up in a book.
