Academic departments
- The Department of Dialectology studies dialects and colloquial language in Bohemia, Moravia and Silesia.
- The Department of Etymology’s main tasks are uncovering the origins of words and compiling an Etymological Dictionary of the Old Church Slavonic Language.
- The Department of Grammar focuses on research and description of the grammatical structure of the Czech language, descriptive methodology and corpus linguistics theory and practice.
- The Department of Language Cultivation addresses language cultivation theory and practice and operates a language consultation centre.
- The Department of Onomastics conducts research into proper nouns.
- The Department of Contemporary Lexicology and Lexicography’s main tasks are development of a new lexicon of contemporary Czech and continuous monitoring and recording of new phenomena in vocabulary.
- The Department of Stylistics and Sociolinguistics examines the use of language in society and develops theories of texts, style, genres and discourse.
- The Department of Language Development focuses on research into the history of the Czech language from its inception through the national revival period.
Other departments
- The Technical and Economic Department manages the financial and technical operations of the Institute.
- The Department of Language Studies’ main areas of activity are the didactics and practical instruction of foreign languages.
- The Department of Scientific Information manages the Institute’s library and maintains a bibliography of Czech linguistics and foreign Czech studies works.
- The Office of the Director handles the organisational and administrative tasks associated with the management of the Czech Language Institute and the work of the Institute’s Board of Directors and Supervisory Board.