Acknowledgements
We would like to express our gratitude to the contributions of peer reviewers, whose expertise and assistance have helped make this special issue possible. We also thank the journal editors for their kindness, professionalism and patience.
Disclosure statement
No potential conflict of interest was reported by the authors.
Notes
1. For the purposes of this introduction, we do not distinguish between speakers of two and speakers of three or more languages. Therefore, the notion ‘multilingual’ includes bilingual speakers.