valid source

[ˈvælɪd ˈsɔːrs]
noun phrasepl: valid sources
fonte válida
1. A reliable, credible, and acceptable origin of information, evidence, or data that meets established standards of authenticity and trustworthiness
Academic journals are considered valid sources for research papers.
Revistas acadêmicas são consideradas fontes válidas para trabalhos de pesquisa.
2. In legal or official contexts, documentation or testimony that is admissible and carries appropriate authority
The court required a valid source to verify the witness's claims.
O tribunal exigiu uma fonte válida para verificar as alegações da testemunha.
3. In academic writing, a reference material that has been peer-reviewed, published by reputable institutions, or recognized as authoritative
Wikipedia alone is not considered a valid source for university assignments.
A Wikipédia sozinha não é considerada uma fonte válida para trabalhos universitários.
In both Brazilian and American academic contexts, the concept of 'valid sources' is fundamental to scholarly integrity. In Brazil, academic institutions increasingly emphasize peer-reviewed sources and official documentation. In the USA, the concept is deeply embedded in educational curricula from high school onwards. Both cultures value primary sources, academic journals, and government publications as valid sources, while being skeptical of blogs, unverified websites, and self-published materials.
Synonyms / Sinônimos
reliable sourcecredible sourceauthoritative sourcereputable sourcetrustworthy source
Antonyms / Antônimos
invalid sourceunreliable sourcequestionable sourceunverified sourcedubious source

Regional Variations

General Brazilian
fonte válida
standard term used in academic and professional contexts
São Paulo
fonte confiável
alternative phrasing emphasizing reliability
Rio de Janeiro
fonte fidedigna
more formal legal terminology
Portugal
fonte fidedigna / fonte válida
both terms used, with 'fidedigna' being more formal in Portuguese European

Related Words

citationreferencebibliographycredibilityauthenticityevidence

Related Idioms & Phrases

cite a valid source
draw from valid sources
backed by valid sources
verify against valid sources
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