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This study investigates endangered language preservation through three research questions: risk factors for endangerment, socio-cultural effects of language loss, and complexities in preservation and revitalisation. A qualitative systematic review underscores the cultural, historical and intellectual importance of endangered languages. It identifies globalisation, urbanisation, and dominant languages as key accelerators of linguistic endangerment. The findings indicate significant sociocultural consequences of language loss, notably the decline of cultural identity and heritage. The study concludes that community involvement, technological advancements, and supportive government policies are crucial to successful preservation, ensuring that at-risk languages are maintained and revitalised for future generations.

In a world where more than half of the 6,500 languages are under the threat of extinction, this paper challenges the conventional view that language preservation lacks concrete economic benefits. Investigating the intricate relationships between monolingualism, cultural identity, and economic dynamics, it illuminates the diverse values that languages contribute to our global heritage. From communicative and emotional to ecological and scientific perspectives, the paper unveils the interconnectedness of linguistic diversity with biodiversity, influencing conservation efforts and ecological equilibrium. Case studies illustrate the economic implications of language loss in sectors like medicine, where traditional knowledge guides pharmaceutical development. Beyond direct monetary considerations, the exploration underscores the unexpected role of language in business, influencing international trade, collaboration, and workplace dynamics. Advocating for the economic value of investing in language resources, the article urges decision-makers to recognize the economic dimensions of endangered languages. The conclusion calls for a shift in perspective, positioning languages not merely as cultural assets but as vital economic factors. It encourages the integration of language preservation into national and international policies to safeguard global linguistic diversity.

This paper proposes the development of a multilingual online dictionary for the Romance languages, called DiCoRom, using an integrative, cross-lingual and pedagogical approach. The dictionary would be based on the database structure and user interface of the existing lexicographic project PORTLEX. The objectives of DiCoRom, its target users and the necessary adaptations to the database and interface are discussed. The paper shows how the structure of PORTLEX can serve as a basis for another lexicographic project, but emphasises the need to redesign the interface to take account of the pedagogical and social orientation of DiCoRom, including the organisation of data and the inclusion of accessible examples for beginners.