Review of Research on the Use of Language Learners E-DictionariesIt is well known that the use of dictionaries is important for language learners LANGUAGES. Almuzainy (2005) pointed out that foreign language learners use dictionaries to decode activities such as reading, listening, and translating from L2 to L1; to encode activities such as writing, speaking and translating from L1 to L2; and for learning in general. Dictionaries can be classified into paper dictionaries and electronic dictionaries. Nesi (2000) noted that “electronic dictionaries differ from paper dictionaries in the information retrieval system” (p. 839). Nesi defined electronic dictionaries as those containing “reference material stored in electronic form that gives information about the spelling, meaning, or usage of words” (p. 839). Recently, many researchers have reported that language learners prefer to use electronic dictionaries rather than printed dictionaries. . For example, Boonmoh (2010) found that 56% of Thia EFL learners prefer pocket electronic dictionaries. Catalano (1996) describes electronic dictionaries as “a valuable tool in the quest for knowledge” (cited in Dziemianko, 2010, p. 258). According to Chen (2010), the gradual introduction of electronic dictionaries has changed users' choices and behaviors towards dictionaries. Furthermore, all over the world, lexicographers, researchers and language teachers are interested in electronic dictionaries. Dziemianko (2010) asserted that electronic dictionaries should be used by teachers in the classroom because they can improve students' vocabulary acquisition and encourage them to use vocabulary in depth. However, Boonmoh (2010) indicated that some language teachers encourage vocabulary learning. ... middle of paper ......th art. In U. Heid, S. Evert, E. Lehmann, & C. Rohrer (Eds.), Proceedings of the ninth international EURALEX congress, EURALEX 2000 (Vol. 2) (pp. 839-847). Stuttgart: Euralex. Pastor, V. and Alcina, A. (2010). Search techniques in electronic dictionaries: a classification for translators. International Journal Of Lexicography, 23(3), 307-354. Schryver, DGM (2003). "The dreams of lexicographers in the era of the electronic dictionary". International Journal of Lexicography, 16 (2), pp. 143-199. Yuzhen, Chen. (2010). Dictionary usage and learning EFL. A contrasting study of electronic pocket dictionaries and paper dictionaries. International Journal Of Lexicography, 23(3), 275-306.Zarei, A., A. & Gujjar, J., A. (2012) The contribution of electronic and paper dictionaries to the Iranian learner's vocabulary learning EFL. International J.Soc. Sci. & Education 2 (4). 628-634.