Grand Duc ESL Dictionary and thesaurus Disques durs et stockage pour ordinateur Walmart Canada. The Grand Duc ESL Dictionary and thesaurus: Designed spicifically for French speaking students who are learning English as a second language, the HRW ESL Dictionary and Thesaurus has everything the students, their parents and their teachers could want. This dictionary is much more than a simple reference work: it's a work and learning tool that includes everything students need to improve their English comprehension and writing skills.