This study analyses variation sets in a sample of child-directed speech (CDS) in Turkish in terms of their structure and effect on child speech. The term "variation set" was first introduced to describe the sequences of repetitions, in which the intention behind expressions stays the same throughout the whole conversation while the form…

The introductory article in an issue devoted to language and communication situations. This topic is treated for the following reasons: linguistic competence means communicative competence; structure and external communication conditions have equal real value; and dichotomies are operative in different types of communication. (Text is in French.)…