In this article, two exploratory measures of L2 dialogue fluency, collaborative completions and other-repetitions, were examined. By focusing on these two features, the aim was to examine how participants maintain fluency collaboratively.

The findings demonstrated that collaborative completions and other-repetitions contribute to interactional fluency by creating cohesion to the interaction. Collaborative completions were also used to help the interlocutor to overcome temporary (individual) disfluent phases. Overall, the findings suggest that individual and interactional fluency are intertwined in spoken interaction, which should be acknowledged in theoretical approaches to L2 fluency and in empirical studies examining L2 fluency in interactional contexts.