The Dictionary of Antonyms in Bulgarian Language covers the body of synonyms in Modern Bulgarian. It contains about 8,500 unique word forms pertaining to four parts-of-speech, distributed into 3,644 antonym sets, as follows: verbs: 571 antonym sets and a total number of over 3,000 words; nouns: 1,399 antonym sets and a total number of over 5,000 words; adjectives: 1,092 antonym sets and a total number of over 4,100 words; adverbs: 582 antonym sets and a total number of over 2,100 words. The words are given in their basic form. Verbs are given only in imperfective form, while perfectives are marked by a grammatical note in parentheses after the verb, as in: дойда (само св.). One word may be a member of more than one antonym set depending on its meaning. When searching in the database for a certain word, antonym sets, containing the searched word, are displayed in a row in ascending order. To specify the stylistic or grammatical characteristics of words in an antonym set, if necessary, notes are placed in parentheses after the word.