This guide adapts rules and examples from Microsoft’s Localization Style Guide for Portuguese (Portugal) (originally written for software/UI localization). The underlying linguistic rules apply universally — to legal contracts, medical documents, marketing copy, and any European Portuguese translation work. Restructured and reformatted as a general European Portuguese translator reference by ChatsControl.

Portuguese (Portugal) Translation Style Guide — Voice, Word Choice & Common Pitfalls (Legal, Medical, Marketing, IT)¶

TL;DR¶

• European Portuguese (pt-PT) translation across all spheres requires a warm, scannable register — modern equivalents (serve para, obedece, mencionar, recomendar, ajudar) replace classic formal constructions (é utilizado para, está em conformidade com, fazer referência a).
• Address user formally with second-person você-form via verb conjugation (Tem de respeitar…); avoid o utilizador (third-person) in consumer-facing text; use clitic positioning following European Portuguese rules (pode ajudá-lo, partilhá-las).
• Acronymization is a Portuguese cultural specificity — many acronyms used in daily speech without expansion (IVA, OPA, HDMI, USB, PC). On first instance, provide expansion in parentheses; subsequent instances use acronym only.
• European Portuguese vocabulary differs from Brazilian: ecrã (not tela), aplicação (not aplicativo), ratinho/rato (not mouse), ficheiro (not arquivo), telemóvel (not celular), endereço de e-mail (not endereço de email).
• Follow 2009 Acordo Ortográfico via ILTEC’s Vocabulário Ortográfico do Português and Lince converter; reference Dicionário Priberam, Ciberdúvidas for usage questions.

Register and tone for modern European Portuguese translation¶

Register is the level of formality, warmth, and conversational ease the target text projects. Modern European Portuguese readers across consumer-facing spheres expect a register that feels human rather than bureaucratic — heavy formal constructions signal distance and institutional indifference to most contemporary audiences.

Three principles define the modern European Portuguese register for consumer-facing content:

• Warm and relaxed. Sounds like honest conversation, not a formal notice. Less institutional, more grounded — matching how Portuguese people actually speak.
• Crisp and clear. Written for scanning first, reading second. Sentences short enough to parse on a phone screen. Simplicity is the default.
• Ready to help. Anticipates what the reader needs and offers it at the right moment.

The best way to achieve modern voice: read the source sentence, understand its meaning, then think how you would convey the same information in natural, untranslated European Portuguese.

Why this matters: Bureaucratic register damages outcomes across spheres. In marketing copy it kills conversion — readers bounce when text sounds like a tax form. In patient-facing medical materials (folhetos informativos, orientações) it reduces comprehension and compliance. In software UI it creates friction. In consumer-facing legal documents (RGPD-mandated privacy notices, terms of service) regulators and consumer protection laws increasingly demand plain language. Only sworn legal translation (tradução certificada) and pure technical specifications retain the older formal register.

Flexibility: when to translate literally vs. when to rewrite¶

Translators should modify or rewrite translated strings to be more appropriate and natural for European Portuguese customers. Understand whole intention of sentences, paragraphs, pages, then rewrite as if you are writing the content yourself. Sometimes remove unnecessary content.

Why this matters: Source-faithful translation produces translatorese. Required in sworn legal translation (atos jurídicos, contratos disputados). Harmful in marketing translation (lost conversion), patient-facing healthcare materials (lost clarity), and software UX (lost engagement).

Word choice: approved terminology and conversational vocabulary¶

Words and phrases to avoid (classic vs. modern)¶

Why this matters: These distinctions appear in legal templates and government forms out of institutional habit but feel alien in modern consumer products, patient-facing medical materials, brand-led marketing, and user-friendly software. A privacy policy opening with “É possível que seja necessário…” reads as bureaucratic indifference; “Poderá precisar de…” reads as the product talking to its user.

Short word forms and everyday words¶

In European Portuguese, short word forms are less common than in English, but they still occur. Acronyms are more common in Portugal than in English-speaking countries — many used in daily speech without people knowing what they stand for.

Word-to-word translation: why direct mapping fails¶

To provide fluent translation, avoid word-for-word translation. If translated directly without overall understanding of the paragraph or page, contents will be unnatural — even ridiculous. Strict word-to-word translation makes tone stiff. Text may be split into sentences if necessary. Omit descriptors for snappier text:

Sample voice: addressing the user¶

Explanatory text and support¶

Promoting a feature¶

How-to guidelines¶

Inclusive language¶

General principles: comply with local language laws; use plain words; mind regional/cultural references; represent diverse perspectives; don’t generalize/stereotype; don’t use profane/derogatory terms or military/political jargon.

Term replacements¶

Avoiding gender bias¶

Use gender-neutral alternatives. Avoid gender-specific compounds.

When presenting generalization, use plural noun forms (pessoas, indivíduos, estudantes).

Don’t use gendered pronouns (ela, dela, ele, dele) in generic references. Instead:

• Rewrite sentence to use plural noun (os utilizadores) or pronoun (eles). Don’t use ele(a) constructions.
• If subject pronoun can be omitted without interfering with meaning, omit.
• Use articles instead of pronoun (o documento, not o documento dele).
• Refer to person’s role in plural (leitores, colaboradores ou clientes).
• Use pessoa or indivíduo.

Real people: Use pronouns the person prefers (ele, ela, eles). Gendered pronouns are fine for real people who use them.

Notes:

• No guidance currently from official Portuguese language bodies on specific pronouns for non-binary people.
• Gender-neutral language for new content; legacy material doesn’t require update.

Accessibility¶

Focus on people, not disabilities. Don’t use pity-implying words (que sofre de). Preferred option: don’t mention disability unless relevant.

Spell out words like e, mais, aproximadamente — screen readers misread &, +, ~.

Language-specific standards¶

Abbreviations¶

When a Portuguese abbreviation ends on a superscript letter, the superscript letter must be preceded by a period representing omitted letters. Example: número → n.º.

Rules for UI abbreviations: - Try using fewer words without sacrificing meaning. - Omit prepositions or similar words. - Abbreviate words by placing a period at the end. No need to stop at a specific point for meaning clarity.

Common abbreviations:

Acronyms¶

Write acronyms in capital letters, without periods or spaces. Gender is that of the first substantive if the acronym is Portuguese. For non-Portuguese acronyms, gender varies by common usage:

• ISDN → RDIS (feminine, because “Rede” is feminine)
• For non-Portuguese acronyms commonly used in Portugal: research European Portuguese sites (university documents, etc.) or confirm with technical specialists. In some cases, no gender is used (no articles).

Plural: Add “s” to a Portuguese acronym — required when omission would convey incorrect information. Example: Connection URLs → URLs de ligação.

Lower case with initial capital when acronym can be pronounced as a proper name: Euratom, Unesco, Opep.

Common nouns treated as common nouns: laser, ovni.

Unlocalized acronyms — names of international protocols, standards, formats, entities. Portuguese cultural specificity: many acronyms used in daily speech without knowing what they stand for (IVA, OPA, HDMI, RDIS, ONU, SMAS, POC, USB, PC).

First instance in a text:

Subsequent instances:

Required localized acronyms (always translate as shown):

Adjectivated nouns (noun as adjective)¶

When omitting the preposition (e.g., de), the noun becomes an adjective describing the noun. Example:

• Configuração MIDI = setting up to be MIDI (e.g., configuring a soundcard to use MIDI rather than WAV)
• Configuração de MIDI = setting up the various functionalities of MIDI

Not always easy to decide. Examples:

• multimedia driver → (+) controlador de multimédia, not (–) controlador multimédia

European Portuguese has clear noun-as-adjective forms: esquema-padrão, azul-céu.

Adjectives¶

In European Portuguese, adjectives generally follow noun (noun-adjective order). Possessive adjectives are NOT as frequent as in English — don’t transfer English extensive use to Portuguese.

Articles¶

Unlocalized feature names should be preceded by an article for fluency.

Localized feature names treated as regular proper names with definite/indefinite articles.

Capitalization¶

Follow standard Portuguese capitalization rules. English uses extensive capitalization that should not be copied to Portuguese — days of the week, months, languages remain lowercase. Titles and dialog labels: only first word capitalized.

Gender (loan words)¶

For English loan words, consider:

• Analogy: Is there an equivalent Portuguese term whose article could be used?
• Frequency: What article is used most often in other pt-PT sources?

Examples: home page (a/uma), site (o/um), widget (o/um).

Localizing colloquialism, idioms, metaphors¶

Three options:

1. Don’t replace source colloquialism with a Portuguese one unless it’s a perfect, natural fit.
2. Translate the intended meaning (not literally) if integral.
3. If colloquialism can be omitted without affecting meaning, omit it.

Non-breaking spaces¶

Use non-breaking spaces between words that shouldn’t separate onto different lines:

• Between unit of measure or currency and number.
• Between items that should not be divided (Microsoft Office).
• Between “capítulo”/”apêndice” and its number/letter.

Avoid in online help and documentation live content (can cause document generation problems).

Numbers¶

Numbers 1-10 spelled out; other numbers as numerals.

High round numbers (“1,000”, “4,000,000”, “16,000,000,000”) translated to “mil”, “quatro milhões”, “16 mil milhões” (note: pt-PT uses long scale — mil milhões not bilhões).

In technical/scientific/mathematical texts, signage, labels, headlines, marketing: numbers as numerals.

Prepositions¶

European Portuguese has fewer prepositions than English. Common error: omitting preposition or using wrong contraction (de + article).

Always pay attention to surrounding context. Many translators omit “de” or contract incorrectly when influenced by English.

Pronouns¶

Address user as “você” (or via verb conjugation, the standard pt-PT way) instead of “utilizador” or passive voice.

For fluent text, avoid redundancy of pronouns. In pt-PT, omitting pronouns when meaning is implicit makes text more natural.

European Portuguese uses formal “tu” only in very informal contexts; you-form usage is via 3rd-person verb conjugation (Tem a certeza?, Pretende continuar?).

Clitic positioning: European Portuguese uses enclisis as default — verb-clitic order (pode ajudá-lo, partilhá-las, ajudar-me, mostrar-lhe), unlike Brazilian Portuguese which prefers proclisis.

Punctuation¶

Bulleted lists: Items composed of full sentences end with period. Otherwise no period.

Comma: Follow general Portuguese rules. Note: in pt-PT, no comma before “e”/”ou” between last two elements of a series.

Colon: Don’t capitalize common words after colon.

Dashes/hyphens: Follow standard Portuguese rules. En dash for ranges. Em dash to emphasize isolated element or introduce non-essential element.

Ellipses: Follow source usage.

Period: Don’t use two spaces after period.

Quotation marks: Follow source.

Parentheses: No space between parentheses and text inside.

Sentence fragments¶

Sentence fragments help convey conversational tone — used whenever possible.

Verbs¶

Use simple tenses. Prefer simple present. Avoid future tense unless action genuinely future.

European Portuguese uses Presente do Indicativo as default; Pretérito Perfeito for past actions; Infinitivo Pessoal for subordinate clauses where subject differs from main clause.

Localization considerations¶

Accessibility¶

Some accessible products may not be available in pt-PT markets. General accessibility info: https://www.microsoft.com/pt-pt/accessibility/.

Applications, products, features¶

Product names rarely translated. Feature names occasionally trademarked (IntelliSense). Verify before translating.

When product name contains preposition, translate preposition unless trademark instructions prevent.

Version numbers always contain period.

Version strings with copyright should be translated using approved Microsoft Terminology translations.

Trademarks¶

Don’t localize trademarked names unless local laws require. Reference: https://www.microsoft.com/en-us/legal/intellectualproperty/trademarks.

Software considerations¶

Clarity and simplicity are key. Be as short as possible. Consider cross-platform consistency.

Error messages¶

Apply voice principles for natural, empathetic, non-robotic translations.

Standard phrases:

• Cannot / Could not / Unable to → “Não é possível”
• Failed to / Failure of → “Falha”
• Not enough memory → “Memória insuficiente”
• …is not available → “não disponível”

Keys¶

Key names in normal text (not small caps). Most English key names not translated. Spacebar (Barra de espaço), arrow keys translated (Seta para cima/baixo/esquerda/direita).

European Portuguese vs. Brazilian Portuguese — key vocabulary differences¶

Reference materials: authoritative European Portuguese references¶

Normative references:

1. ILTEC’s Vocabulário Ortográfico do Português — accessible for free at portaldalinguaportuguesa.org. Also includes Lince, a free spelling reform converter.

Informative references:

1. Ciberdúvidas da Língua Portuguesa — ciberduvidas.iscte-iul.pt. Accepted resource for usage questions. Good summary of 2009 spelling reform available there.
2. Dicionário Priberam de Língua Portuguesa — dicionario.priberam.org. Free online resource.

FAQ¶

What’s the modern register for European Portuguese translation across professional contexts?¶

Warm, conversational, scannable — closer to modern spoken Portuguese than classic formal constructions. Applies to medical patient materials, marketing copy, software UI, consumer-facing legal documents. Sworn legal translation, official documents, academic texts retain more formal register including extensive nominalization and reflexive constructions.

How should I address users in European Portuguese translation?¶

Use formal second-person form via verb conjugation (Pretende continuar?, Tem de respeitar…) — omitting the pronoun é possível in Portuguese. Avoid third-person o utilizador in consumer-facing text. Avoid Brazilian você in pt-PT formal contexts — but the 3rd-person verb form serves the same function naturally.

What are the most common pt-BR vs. pt-PT vocabulary differences?¶

ecrã (pt-PT) vs. tela (pt-BR); aplicação vs. aplicativo; ratinho/rato vs. mouse; ficheiro vs. arquivo; palavra-passe vs. senha; telemóvel vs. celular; clicar com botão direito vs. botão direito do mouse; partilhar vs. compartilhar; transferência vs. download (though both used in pt-PT); pen USB vs. pen drive; configuração vs. configuração (same); aceder a vs. acessar.

How do I handle acronyms in European Portuguese translation?¶

Acronymization is Portuguese cultural — many acronyms in daily speech (IVA, OPA, HDMI, USB, PC) without knowing the expansion. First instance in text: protocol PCTP (Private Communication Technology Protocol); subsequent: PCTP only. Plural: add -s (URLs de ligação). Specific localized acronyms: ISDN→RDIS, IT→TI, HR→RH, IM→MI, VAT→IVA, tone dial→MF.

Which European Portuguese normative references should I follow?¶

ILTEC’s Vocabulário Ortográfico do Português (free, includes Lince spelling reform converter). Informative: Ciberdúvidas (usage questions), Dicionário Priberam de Língua Portuguesa (free online), summary of the 2009 spelling reform.

How does European Portuguese clitic placement differ from Brazilian?¶

European Portuguese uses enclisis as default (verb-clitic): pode ajudá-lo, partilhá-las, ajudar-me, mostrar-lhe. Brazilian Portuguese prefers proclisis (clitic-verb): pode lo ajudar, lhe mostrar. Mesoclisis (clitic inside verb) is still used in pt-PT in future and conditional: dar-lhe-ei, mostrar-lhe-ia.

What’s the European Portuguese billion vs. Brazilian billion?¶

European Portuguese uses long scale: mil milhões (10^9), billion = 10^12. Brazilian Portuguese uses short scale: bilhão = 10^9. Important for translating financial/scientific texts. Use “mil milhões” in pt-PT for 10^9.

Sources¶

• Microsoft Localization Style Guide for Portuguese (Portugal) (PDF)
• Microsoft Globalization Style Guides hub
• ILTEC Vocabulário Ortográfico do Português
• Dicionário Priberam
• Ciberdúvidas da Língua Portuguesa
• Microsoft Accessibility (pt-PT)