Examines 158 examples of malapropisms and determines three possible sources of this type of error: (1) childhood errors that were never corrected, (2) other kinds of imperfect learning, and (3) breakdown in the storage and retrieval system of the mental lexicon. (AM)

Discussion of the multilingual mind's organization proposes the Least Expansion Hypothesis, that knowledge of any language is organized in the same cognitive manner. A slot is created for knowledge of each level of language, storing knowledge of all languages pertaining to that level. A new knowledge unit is entered only when differing…