Esperanto lexicographers are individuals or groups, whether enthusiastic amateurs or trained linguists, who have produced single-language or bilingual . More than 130

Esperantist An Esperantist () is a person who speaks, reads or writes Esperanto. According to the Declaration of Boulogne, a document agreed upon at the first World Esperanto Congress in 1905, an Esperantist is someone who speaks Esperanto and uses it for ...

s, working singly or collectively, have published such dictionaries; several of these authors are listed in the " Esperanto lexicographers" category. In the specific case of Esperanto, most dictionary authors historically were and today still are non-specialists in the field of

lexicography Lexicography is the study of lexicons and the art of compiling dictionaries. It is divided into two separate academic disciplines: * Practical lexicography is the art or craft of compiling, writing and editing dictionaries. * Theoretical le ...

. A notable exception is , a German professor of Indonesian, who wrote comprehensive dictionaries, both German–Esperanto (2007) and Esperanto-German (1999). Though most Esperanto dictionary compilers have been men, notable female Esperanto lexicographers include , who wrote Dutch–Esperanto and Esperanto–Dutch dictionaries (1971) and Ilona Koutny, chief editor of a Hungarian–Esperanto dictionary, 1996). Because compiling a dictionary demands great linguistic expertise and may be the labour of many years, most dictionary writers were only able to accomplish the feat in their elder years; however, the

Austria Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...

Eugen Wüster Eugen Wüster (10 October 1898 – 29 March 1977) was an industrialist and terminologist, regarded as "the father of technological standardization". Career Wüster became enthusiastic about Esperanto when he was 15, soon becoming an Esperant ...

wrote the core of his encyclopedic Esperanto–German dictionary, published in 1923, as an early-20s university student. The German Eckhard Bick, having emigrated to Denmark, published his Danish dictionary at 32. The professions of Esperanto lexicographers vary widely; one may find teachers (, , ,

Boris Kolker Boris Grigorevich Kolker (; born July 15, 1939, in Tiraspol, Moldavian ASSR, Soviet Union) is a language teacher, translator and advocate of the international language Esperanto. He was until 1993 a Soviet and Russian citizen and since then has ...

, etc.), theologians like Jan Filip, literary professionals such as

Gaston Waringhien Gaston Waringhien (July 20, 1901 – December 20, 1991) was a French linguist, lexicographer, and Esperantist. He wrote poems as well as essays and books on linguistics. He was chairman of the Akademio de Esperanto. Books * ''Plena Vortaro'' (19 ...

, translators ( Fernando de Diego) or journalists (Joseph Rhodes, Razen Manandhar), but also many technicians and engineers ( Rüdiger Eichholz, , etc.) Both and L.L. Zamenhof were

ophthalmologists Ophthalmology (, ) is the branch of medicine that deals with the diagnosis, treatment, and surgery of eye diseases and disorders. An ophthalmologist is a physician who undergoes subspecialty training in medical and surgical eye care. Following a ...

, while Montagu C. Butler was a musician. Sometimes, too, a collective has compiled a dictionary. An example is the editorial committee of the Japanese Esperanto Institute, under the guidance of Gaku Konishi and . Founded in 1990, the committee eventually published its Esperanto–Japanese dictionary in 2006.

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