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K-Topic Map is released after reformation of Kowledge 2.0 Base service.(


K-Topic Map is a graph database of Korean Words which reconstructs relationships among words, by categorizing synonyms, hypernyms, hyponyms & translated words. Each word is represented as a node, with which the relationships with other words are considered. Therefore, in contrast to the existing dictionaries, a word is described in context of the relationships to other words.

K-Topic Map covers fundamental words, which consists of 490,000 words from Korean Standard Unabridged Dictionary and common dictionaries, 1 million Korean words, 430,000 English words, 90,000 Japanese words. Currently, 900,000 words are categorized as synonyms, related words, hypernyms, hyponyms and abbreviations.

In addition, K-Topic Map uses 8,000 classifier codes. Currently 300,000 words are classified as Law/Administration, Plants/Animals, Information/Communication, Religion/Myth and so forth.


1. Vocabulary Information

Each word contains its information, such as foreign languages and full names.
For example, korean name, latin name, Chinese name, Full name, Scientific name(plants/animals).

2. Vocabulary Relationships

Relationships among vocabularies are shown as follows:

  1. Synonyms : In addition to equivalent & similar words, alias and North Korean words are included.
  2. Broader/Narrower : K-Topic Map allows bi-directional searches without restrictions of hypernyms & hyponyms.
  3. Related : In addition to the vocabularies in dictionaries, K-Topic Map shows related words based on descriptions and frequencies. The related words include related events, works and persons.
  4. English/Japanese : K-Topic Map provides English & Japanese translated words. The node structure allows users to acquire Korean-English, Korean-Japanese & English-Japanese translations.
  5. Abbreviation : K-Topic Map provides English abbreviations.

3. Category

K-Topic Map is also category-structured, in addition to the node-structure. 75% of vocabularies show relationships to more than one categories. Some of the examples are shown as follows:

  1. Law & Administration : 8,600 words are categorized following the taxonomy of law & administrative vocabularies in the Ministry of Government Administration and Home Affairs homepage.
  2. IPC Category : 50,000 words in IPC 7th edition are categorized to sub-classes.
  3. Fauna & Flora(Bio Classification) : 13,000 plants and animals are categorized based on 25 volumes of ‘Korean Plants and Animals Handbook’, published by Korean Ministry of Education.
  4. Information & Communication : Words are categorized following Info-Communication Dictionary.
  5. Korean District : 50,000 words from Korean administrative district system vocabularies are categorized.
  6. Korean Decimal Class : 157,000 words are categorized based on KDC Decimal Class level 2.
  7. Job Category : Categorized the jobs of 9,000 figures. Job categories are statistically edited & merged based on descriptions.
  8. Nation Code : 88,000 words are categorized based on the nation codes.
  9. Religion Category : 37,000 words from Christian dictionaries, Buddhist dictionaries and Religion/Myth dictionaries.
  10. Korean Heritage Category : Words for cultural relics are categorized based on ‘Comprehensive Survey of Cultural Relics (1995)’ from National Research Institute of Cultural Heritage. Also, the categorization follows classification standards of Cultural Relics Administration.

4. Signification Code

120,000 words include vocabularies with different meanings & same spellings. K-Topic Map uses Signification Code along with vocabulary & category relationships.


 5. Law & Administration Classification

For example, users can select ‘민법’ in ‘전자정부/법률행정용어’, and then choose ‘부동산등기’ in subcategories, to find the list of 32 items which are related to real-estate registration.

6. IPC Classification

Words in IPC (International Patent Classification) are classified to sub-classes.
Select A Section in IPC Category, then select A61 in A Section, to find vocabularies in the class.

7. Fauna & Flora Classification

Bio Classification provides the vocabularies on the scientific taxonomy and names of plants & animals based on ‘Korean Illustrated Guide to Flora and Fauna’, from ‘Volume 1. Butterflies (1959)’ to ‘Volume 30. Aquatic Insects (1988)’

8. Heritage Assignment Classification

Words are categorized for the government designated cultural relics.
Select ‘02 보물’ in the subcategories to view the list of cultural relics.

9. General Classification

K-Topic Map provides 4,000 categories for daily words. In the example, select ‘용기’ to see vocabularies for emotions.

By searching ‘용기’, K-Topic Map shows the words related to ‘용기(courage)’. Also upward search leads to other emotional terms.

Any Questions?

Also we can give you K-Topic Map data, so you can develop your application using dictionary files. If you have any questions, please contact us by email at