This supplement to the Peace Corps Course in Tunisian Arabic is intended primarily for Peace Corps volunteers, but is also useful to other English speakers who wish to acquire systematically a knowledge of Tunisian Arabic. The dictionary consists of two parts. The lexicon, which begins with a chart of all the phonetic symbols used in the dictionary, explains the main points of Tunisian Arabic grammar. The main body of the work follows, with separate English-Tunisian Arabic and Tunisian Arabic-English sections. The format for entries in the dictionary is explained in an introduction. Each entry in the English-Tunisian Arabic section emphasizes the nuances of meaning of the given Arabic equivalent. (JB)