Website Translation & Localization Glossary

.po / .mo Files Portable Object files holding gettext translations in human-readable (… Accept-Language Header The browser HTTP header listing the user's preferred languages, the cl… AI Crawlers Bots feeding LLMs and answer engines — GPTBot, ClaudeBot, Google-Exten… AI Overviews Google's AI-generated summaries atop search results, present on roughl… Answer Capsule A 40–60 word self-contained answer placed directly under a question he… API Key The credential identifying your account to a translation API; you cont… Arabic SEO Optimizing for 400M+ Arabic speakers: RTL layouts, dialect awareness (… Back-Translation Translating output back to the source language to spot meaning drift —… Batch Translation Sending many strings per API call instead of one-by-one — fewer round… Bidirectional Text (BiDi) Text mixing right-to-left and left-to-right content — like an Arabic s… Brand SERP The results page for your brand name — your real homepage in the AI er… Brand Voice (multilingual) Your brand's personality expressed consistently across languages — gua… Breadcrumbs The navigation trail (Home › Section › Page) aiding users and, with sc… BYO Key (Bring Your Own Key) The pricing model where you connect your own translation API key and p… Canonical URL The preferred URL for a piece of content, declared via rel=canonical,… CAT Tool Computer-Assisted Translation software used by professional translator… ccTLD Country-code top-level domains — example.fr, example.de — the stronges… CDN (multilingual) Content delivery networks caching pages near users worldwide — essenti… Chinese SEO Two markets, two stacks: Simplified Chinese + Baidu/local hosting for… Citation Rate The share of AI-generated answers in your topic that cite your domain… CJK Languages Chinese, Japanese and Korean — languages with distinct scripts, no spa… Content Parity Keeping language versions equivalent in substance — Google compares th… Country Code (ISO 3166-1) The two-letter standard for countries — US, DE, JP — combined with lan… Crawl Budget How many URLs a search engine will crawl on your site per period — a r… Crawlable Language Switcher A switcher built from real anchor links (not JS events), letting crawl… CTR (Click-Through Rate) The share of searchers who click your result. AI answer surfaces have… Currency Localization Showing prices in local currency with correct formats — separate from… Date & Number Formats Locale conventions — 1.000,50 vs 1,000.50; DD.MM.YYYY vs MM/DD/YYYY —… DeepL The Cologne-based translation company whose neural engine is widely co… Default Language The source language your content is authored in — the canonical text e… Do-Not-Translate (DNT) List Strings excluded from translation — brand names, SKUs, code samples —… Doorway Pages Near-identical pages mass-produced to capture search variations — a Go… Duplicate Content Substantially identical content on multiple URLs. Translations are NOT… Edge/Proxy SEO Considerations When translations serve via third-party edges, verify indexability, re… Engine Selection Choosing Google vs DeepL per language pair: DeepL for supported Europe… Entity SEO Optimizing for things, not strings: making your brand, product and top… FAQ Schema Structured data marking up question-answer pairs, making them machine-… Featured Snippet The highlighted answer box at the top of classic Google results, drawn… Flags for Languages (debate) The UX question of using country flags for languages — flawed because… Formality Control DeepL's option to force formal (Sie, vous) or informal (du, tu) addres… Fuzzy Match A translation-memory hit that is similar but not identical to a stored… GEO (Generative Engine Optimization) Optimizing to be cited by AI answer engines — ChatGPT, Google AI Mode,… Geo-Targeting Telling search engines which country a site or section targets, via cc… Gettext The GNU system WordPress uses for translating software strings via .po… Glocalization Global reach with local flavor — one brand, locally adapted offers, co… Glossary Injection Forcing approved translations of key terms into MT output via engine g… Google AI Mode Google's conversational search surface that decomposes queries into pa… Google Search Console Google's free tool reporting impressions, clicks, indexing and (increa… Google Translate / Cloud Translation Google's translation stack: a free consumer product and the Cloud Tran… HowTo Schema Structured data describing step-by-step instructions, used by search a… hreflang An HTML attribute that tells search engines which language and optiona… hreflang Cluster The complete reciprocal set of alternate annotations across all langua… Hub Page An index page linking to all items of a content type — the crawl gatew… In-Context Review Quality review performed on the rendered page rather than in isolated… Indexing Search engines storing your pages for retrieval. Translated pages must… Internal Linking Links between your own pages — the mechanism that distributes authorit… International SEO The discipline of making a website rank correctly across multiple lang… Internationalization (i18n) Engineering a product so it can be localized: externalized strings, fl… Internationalization Testing QA pass for multilingual readiness: encoding, layout expansion, RTL mi… Japanese SEO Ranking in Japan: mixed-script keywords (kanji/hiragana/katakana), mob… JavaScript Widget Translation Client-side translation overlays (like free GTranslate tiers) that swa… JSON-LD The recommended format for structured data: a JSON script block in the… Language Analytics Measuring traffic, engagement and conversion per language path to stee… Language Code (ISO 639-1) The two-letter standard identifying languages — en, fr, de, ja — used… Language Detection Auto-detecting visitor language from browser headers or IP — best used… Language Fallback What renders when a translation is missing — typically the source text… Language Negotiation The server choosing a response language from the request (path, header… Language Prioritization Choosing which languages to launch first, by current traffic origins,… Language Switcher The UI control letting visitors change languages — dropdown, flags or… Lazy Translation Translating strings on first request per language instead of pre-trans… Legal Localization Adapting terms, privacy and consumer-rights pages per market — transla… LLM Translation Translation produced by large language models (GPT, Gemini, Claude), w… llms.txt An emerging convention: a markdown summary at /llms.txt giving AI syst… Locale A language plus regional conventions — like fr-CA (Canadian French) —… Localization (L10n) Adapting a product or website to a target market: translation plus cur… Localization ROI Revenue gained per language added versus its cost — overwhelmingly pos… Long-Tail Keywords Specific, lower-volume search phrases — “translate woocommerce to japa… Machine Translation (MT) Automatic translation of text by software — today almost always neural… Market-Entry Content The minimum localized set for entering a market: homepage, top product… Meta Description The snippet text describing a page in search results — translated per… MT Bias Systematic errors in machine translation — gender defaults, register d… MT Quality Estimation Automatic scoring of machine translation confidence without a referenc… MTPE Rates What human post-editing costs — typically 30–60% of full human transla… Multilingual Keyword Research Finding what people actually search in each language — never just tran… Multilingual SEO Optimizing each language version of a site to rank in its own right —… Multilingual SEO Migration Preserving rankings while changing translation systems or URL structur… Multisite Multilingual Running each language as a separate WordPress site in a network — maxi… Neural Machine Translation (NMT) The current generation of machine translation, using deep neural netwo… noindex A robots directive excluding a page from search results while still al… Noscript Fallback Ensuring translated content exists in initial HTML rather than requiri… Page Caching (multilingual) Storing rendered pages for instant serving — each language URL is its… Per-Language Sitemap Separate sitemap files per language or section, making index coverage… Permalink WordPress' permanent URL for content; multilingual setups prefix it wi… Placeholder / Variable Dynamic tokens inside strings — %s, {name} — that must survive transla… Portuguese Variants pt-PT and pt-BR diverge in spelling, grammar and vocabulary; Brazil's… Post Duplication Model The architecture (WPML, Polylang) where every translation is a separat… Post-Editing (MTPE) The workflow where a human reviews and corrects machine translation ou… Pre-Translation (eager) Bulk-translating all content ahead of traffic, ensuring complete cover… Programmatic SEO (pSEO) Generating many pages from structured data + templates to cover long-t… Proxy Translation Serving translations through a vendor's servers/subdomains that sit be… Pseudo-Localization Testing technique replacing text with elongated accented dummy strings… Quality Gate (programmatic) Automated thresholds deciding whether a generated page deserves indexi… Query Fan-Out AI Mode decomposing one question into parallel sub-queries, assembling… RAG (Retrieval-Augmented Generation) AI answering by retrieving live documents and citing them — the mechan… Rate Limit API caps on requests per time window; translation engines throttle bur… Regional Variant A language flavor tied to a place — en-AU, fr-CA, de-CH — signaled via… Register (linguistics) The level of formality and style in language — legal, conversational,… robots.txt The file telling crawlers what to fetch, where sitemaps live, and incr… RTL (Right-to-Left) Writing direction of Arabic, Hebrew, Persian and Urdu, requiring mirro… SaaS Translation Platform Cloud services (Weglot, ConveyThis) hosting your translations on their… Search Intent The goal behind a query — informational, commercial, transactional or… Segment The unit of translation — usually a sentence — into which content is s… Self-Hosted Translation Translations stored and served from your own WordPress database and se… SEO Value of Translation The organic traffic unlocked by indexable language versions — each lan… SERP Search Engine Results Page — the page of results, increasingly topped… Site Architecture How pages are organized and connected; flat, logical architectures hel… Site Speed (Core Web Vitals) Google's performance metrics — LCP, INP, CLS — which apply to every la… Spanish Variants es-ES vs es-MX vs es-419: vocabulary and tone differ enough that major… Staging for Multilingual Sites Testing translation changes on a staging copy — including the strings… String Extraction Collecting all translatable text from code or pages so it can be trans… String Table Model The architecture storing translations as source→target string pairs ap… Structured Data (Schema.org) Machine-readable JSON-LD describing your content — products, articles,… Subdirectory URL Structure Hosting languages under paths — example.com/fr/ — the structure Google… Subdomain URL Structure Hosting languages on subdomains — fr.example.com — which search engine… Support Localization Serving customers in their language — localized help docs, forms and a… Term Base (Glossary) An approved list of how specific terms — product names, industry jargo… Text Expansion The tendency of translations to be longer than the source — German, Fr… Thin Content Pages offering little unique value — the central quality risk for prog… Title Tag The page title shown in search results and browser tabs — the single m… TMS (Translation Management System) Enterprise platforms (Smartling, Phrase) orchestrating translators, wo… Tone Preservation in MT Whether machine output keeps your warmth, urgency or playfulness — the… Topic Cluster A pillar page plus tightly interlinked subpages covering one subject c… Transcreation Creative adaptation of marketing content for another culture — rewriti… Translated Slugs Localizing the URL path itself — /fr/a-propos/ instead of /fr/about/ —… Translation API A programmatic translation service — Google Cloud Translation, DeepL A… Translation Cache Stored machine translation results served on subsequent requests, elim… Translation Data Ownership Whether your translations live in your database (yours forever) or a v… Translation Debt The backlog of untranslated or stale translated content accumulating a… Translation Memory (TM) A database of previously translated sentence pairs, reused so identica… Translation Quality Accuracy + fluency + appropriateness for purpose; measured by error ra… Unicode / UTF-8 The universal character encoding standard letting one page mix any scr… Untranslatables Culture-bound words without direct equivalents — hygge, saudade — requ… Visual Translation Editor An interface for editing translations directly on the live page — clic… WCAG Language Requirements Accessibility rules requiring correct lang attributes on pages and on… Website Translation Cost What translating a site actually costs: at wholesale API rates, a 50,0… Word Quota The licensing model bundling a fixed number of machine-translated word… Word-Count Tiers SaaS pricing levels capping translated words and languages; exceeding… WPML Credits WPML's automatic-translation currency: each word costs credits, with e… x-default A special hreflang value marking the fallback URL search engines shoul… XML Sitemap A machine-readable list of your URLs that helps search engines discove… Zero-Click Search Searches resolved entirely on the results page — now the majority for…