palavrabase

Palavrabase is a multilingual lexical database developed as a resource for linguistics, natural language processing, and language education. It catalogs words and related linguistic data across languages, with a focus on providing structured metadata about lemmas, grammatical categories, phonology, semantics, and usage.

Entries typically include language, lemma, part of speech, inflectional paradigm, IPA pronunciation, frequency estimates, etymology, synonyms and antonyms, semantic fields, and example sentences. The database also records regional varieties, registers (formal, informal), and, where appropriate, sensitive terms in a way that supports research and moderation without exposing raw content in all contexts.

Palavrabase is designed for programmatic access via an API and for bulk download in JSON, CSV, and XML. It supports advanced search by lemma, lemma with affixes, language, part of speech, frequency bands, and semantic relations. Data integrity is maintained through versioning, citations to sources, and community contributions.

Maintenance is typically carried out by a collaborative organization or cooperative, with contributions governed by a data-use license such as CC BY 4.0 or CC0. Moderation policies address privacy, copyright, and ethical concerns, including handling of sensitive terms.

Applications include language documentation, lexical research, language technology development (tokenizers, lemmatizers, spell checkers), machine translation, sentiment and affect analysis, and content moderation. Palavrabase supports multilingual research by offering language-specific subcorpora and cross-linguistic mappings.

Origins and development are ongoing, with community-driven improvements and alignment with open-data standards. As a conceptual resource, Palavrabase aims to balance breadth of coverage with data quality and responsible use.