Revisiting the speech error phenomenon: A thematic narrative review

This review examines how researchers have approached speech errors across a wide range of studies, drawing on work from databases such as Scopus, Web of Science, and Google Scholar. Rather than beginning with fixed categories, patterns were allowed to emerge gradually through close engagement with the literature. The analysis brought to light six recurring themes: (1) speech errors are explainable, often reflecting identifiable processes; (2) they are traceable and identifiable across different contexts; (3) they are largely unavoidable, yet speakers frequently manage to repair them in interaction; (4) they serve as valuable evidence for understanding how language functions in real-time; (5) they are consistently interpreted through established theoretical frameworks; and (6) they have remained a subject of continued interest, with recent studies revisiting and extending earlier insights. Taken together, these themes point to speech errors as systematic, shaped by cognitive processes, and far from random or trivial. Beyond showing how language is processed and produced, they offer practical insights, particularly for English Language Teaching (ELT). At the same time, the review highlights areas where further research is needed, especially on lesser-studied languages, multilingual contexts, and the potential of emerging technologies for speech analysis. By bringing these strands together, the review offers a more connected view of speech errors and their relevance to language education, psycholinguistics, and communication studies.