This study investigated the effect of three idiom learning strategies; etymological elaboration, pictorial elucidation, and podcasting on idiom comprehension by the EFL learners. A total number of 60 homogeneous upper-intermediate learners studying English in Shiva language institute in Qom, Iran, were selected based on the result of Oxford Placement Test (OPT). After applying the Test, the attendees were randomly divided into three groups of almost equal size and took a thirty-item pretest to ensure their unfamiliarity with the idioms. The idioms that were familiar even to one attendee were eliminated and at last 30 idioms were chosen for the instruction. Then, the etymological elaboration, pictorial elucidation, and podcasting groups received their relevant treatments during 10 sessions. After the implementation of the experiment, the researcher administered the posttest to examine the influence of these strategies on idiom comprehension. Finally, the data were analyzed by one-way ANOVA. The results proved that etymological elaboration strategy was the less effective technique in developing learners’ idiom comprehension and the two techniques of pictorial elucidation and podcasting had equal degree of impact in leading to learners’ idiom comprehension.
