This volume presents research in the field of first language acquisition discussed at the 1993 meeting of the Child Language Research Forum. The contributors are Maria A. Alegre, Ursula Bellugi, Jeffrey G. Bettger, Paul Bloom, Melissa Bowerman, Ursula Brinkmann, Penelope Brown, Nancy Budwig, Joan Bybee, Alice Shuk-yee Cheung, Soonja Choi, Patricia Clancy, Stephen Crain, William Croft, Cynthia Crosser, Peter Culicover, Eve Danziger, Sonja Eisenbeiss, Karen Emmorey, Susan Ervin-Tripp, Claire Foley, Dicky G. Gilbers, Adele E. Goldberg, Alison Gopnik, Peter Gordon, Susan A. Graham, Jiansheng Guo, D. Geoffrey Hall, Alison Henry, James H. Hoeffner, Qian Hu, Tara Jackson, Catalina Johnson, Shyam Kapur, Bonita P. Klein, Edward S. Klima, Amy Kyratzis, Marie Labelle, Barbara Landau, Thomas Hun-tak Lee, Barbara Lust, Rachel I. Mayberry, James L. McClelland, Zelmira Nez del Prado, Dominique Nouveau, Diane Poulin-Dubois, Lisa Riche, Nancy Soja, Susan Toth-Sadjadi, Andrew Chung-yee Tse, and Klarien J. van der Linde. Eve V. Clark is Professor of Linguistics at Stanford University, author of The Lexicon in Acquisition, and co-author of Psychology and Language (with Herbert H. Clark).