Central to the segmental/suprasegmental debate is the notion that segmental and suprasegmental features are separate entities, and this is reflected in related research, where various studies have investigated the importance of one or the other to intelligibility and/or comprehensibility. At sites of reduced intelligibility, links were made between the characteristics of the speakers’ pronunciation and the listeners’ difficulties identifying the words the speaker intended to say. The prosodic hierarchy provides a useful framework for the analysis of the way different pronunciation features might combine or interact to influence a speaker’s intelligibility. It is important to note that future research investigates how different features of pronunciation combine and interact to reduce intelligibility, and also explores the role played by both the speaker and the listener. The way listeners identify individual words in a stream of continuous speech is language specific and based on the listener’s L1 speech processing strategies.