Frontmatter -- Contents -- Acknowledgements -- Introduction -- Part 1: Bilingual and Multilingual Language Use -- 1. Language Users and Language Use -- 2. Attitudes Towards Bilingual and Multilingual Language Use: The Western and Central-European Perspective -- Part 2: Defining Lexical Crosslinguistic Similarity -- 3. Where Does Crosslinguistic Similarity Come From? -- 4. Crosslinguistic Lexical Similarity -- Part 3: Lexical Crosslinguistic Similarity in Use -- 5. Crosslinguistic Similarity and Crosslinguistic Influences -- 6. Cognate Vocabulary in Language Processing -- 7. Cognate Vocabulary in Second Language Acquisition -- 8. Language-related Factors in Lexical CLI -- 9. Learner-related Factors Affecting Lexical CLI -- 10. Reliance on Lexical CLI as a Strategic Behaviour -- Part 4: Investigating Lexical Crosslinguistic Similarity in Language Learning -- 11. Introduction: Researching the Awareness of Cognates in Polish Learners of English -- 12. Investigating the Awareness of Cognate Vocabulary: Polish Adult Learners of English -- 13. Using Cognates as a Vocabulary Learning Strategy: Polish Adult Learners of English -- 14. Awareness of Cognates as a Motivational Strategy: The Age Factor -- 15. Towards Plurilingual Language Teaching with -- References -- Index