Welcome to the 44th Annual Boston University Conference on Language Development (BUCLD). Since 1976, BUCLD has been organized by graduate students in Boston University’s Programs in Linguistics and Applied Linguistics. With years of student work and the help of faculty advisors, the conference has become one of the largest international gatherings of linguists, psychologists, and other researchers of language acquisition and development. We thank our participants for the research accomplishments they have shared with us over the past four decades.