This study is an examination of morphophonology in terms of the interaction between morphological structure and phonological structure. While assuming the basic lexical/postlexical dichotomy of Lexical Phonology, this examination of specific issues in French morphophonology refers centrally to prosodic structure of the type proposed by Selkirk (1980) and further developed by, among others, Nespor & Vogel (1986). The specific processes of French morphophonology examined here include certain aspects of prefixation and nasalization, glide formation, closed syllable adjustment and penultimate schwa specification. By referring to prosodic structure, it is shown that level ordering can be dispensed with the Lexicon, following the lead of, among others, Fabb (1988), Booji (1989) and Inkelas (1989).