In our article, we investigate the complex dynamics of linguistic understandings and mis- or non-understanding within multilingual contexts. Through the lens of sociolinguistic exploration, we navigate the multifaceted landscapes of language use, applying a multi-perspective approach and the triangulation method to explore the depths of linguistic non-understanding (LNU). Drawing on ethnographic data collection and multi-perspective analysis, we highlight the challenges and opportunities inherent in incorporating LNUs into research practice. Embracing a non-positivist stance, we acknowledge the role of being a 'non-knower' in our pursuit of understanding. Our methodology section briefly demonstrates the application of the triangulation method for researching multilingualism, while our empirical findings unveil various instances of LNU across everyday language use. We emphasise the importance of researchers' reflexivity and the recognition of repertoire users as experts in their linguistic practices. Ultimately, our study offers insights into the analytical advantages of adopting an in-depth and multi-perspective approach to research in multilingual environments.