The Model 3 communication skills lexicon consists of three lists of words developed by the Southwest Regional Laboratory (SWRL) for use in communication skills instruction in K-6. This report documents the procedures followed in compiling the entry lexicon, the first component of the Model 3 communication skills lexicon. The entry lexicon is defined as those words learned by children before entering kindergarten. Minor revisions of the inclusion-exclusion criteria as defined in Cronnell (1971) are explained, and a comparison is made with the Model 2 lexicon. Separate lists are included for proper names; literary, fictional, and historical names; contractions; and phrases. Also noted are some observations about the organization and character of the speech of kindergarten children. (Author/RB)