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The current study analyzed adults' difference and similarities of memory retrieval of linguistic structures through Spreading Activation Theory suggested by Anderson (1976). This study adopted the quantitative descriptive approach. Thirty-three educated adults, from Mahrah University, who speak English, participated in the study. Participants took three tests derived from Spreading Activation Theory: Fact Retrieval (FR) test, Configured Cue (CC) test, and Schemata Sentences (SS) test. The study showed these results; similarity percentage between individuals in retrieval process throughout the four tests was high which scored (67.20%). While the difference percentage scored (32.80%). The differences between learners were statistically significant at a value of less than (0.01), with the (f) value across the tests scoring (75.105). The study concluded with recommendations in studying retrieval process of phones and morphemes.