Semantic Differentiation and Functional Synonymy of Russian Intonational Constructions

This study examines the semantic functionality, synonymy, and distinctiveness of Russian intonational constructions(IC) within a functional-communicative framework. Rejecting the narrow view of intonation as mere pitch movement, the paper conceptualizes intonation as a system of suprasegmental features that organizes utterance meaning in spoken discourse.<br/> Based on Brizgunova’s classification of seven intonational constructions (IC-1 ~ IC-7), the study analyzes how different intonation patterns applied to identical lexical and syntactic structures produce divergent communicative meanings. Particular attention is given to the role of the intonational center (ин тонационный центр) and its interaction with functional sentence perspective (theme–rheme structure), demonstrating that shifts in nucleus placement can modify informational focus without changes in word order. The analysis of homonymous constructions shows that intonation functions as an autonomous semantic mechanism capable of expressing completion vs. non-completion, interrogation, emphasis, emotional evaluation, and stylistic nuance. At the same time, Russian intonational constructions display both synonymic and contrastive potential: multiple patterns may convey similar communicative meanings, while subtle intonational differences lead to significant semantic reinterpretation.<br/> The findings confirm that intonation in Russian is not a secondary phonetic feature but an independent linguistic system with objective communicative value, playing a crucial role in discourse organization, focus marking, and semantic differentiation in spoken language.