Xereta is a free Portuguese–English dictionary covering more than 78,000 headwords, built for anyone learning either language — whether that's a Portuguese speaker picking up English, an English speaker learning Portuguese, or someone who just hit an unfamiliar word mid-sentence and wants a straight answer.
Search works in both directions from a single box: type a Portuguese word and get its English meaning, or type an English word and get the Portuguese translation. Verb conjugations, plurals, and regional Brazil/Portugal pronunciation differences are handled directly, rather than left for you to guess at.
Definitions, translations, part-of-speech tags, IPA pronunciation, and conjugation tables are derived from Wiktionary, the free multilingual dictionary maintained by volunteer editors, used here under its CC BY-SA license. Word-frequency data used to rank translation candidates by how commonly they're actually used comes from the FrequencyWords project (MIT licensed, derived from OpenSubtitles).
Neither source is used unmodified: Xereta's build process filters out Wiktionary's grammatical cross-references and stub entries, resolves which of several possible translations is the everyday one rather than an obscure or archaic alternative, and merges regional spelling variants so a search for either the Brazilian or European Portuguese form of a word reaches the same entry.
Wiktionary lists a word's senses in whatever order its editors happened to add them, which isn't necessarily the order a learner would find most useful — a common word's primary everyday meaning can end up listed after a rarer, more technical one. Xereta cross-references actual usage frequency so that, for example, searching "work" surfaces "trabalho" rather than an obscure synonym that technically means the same thing but that a native speaker would rarely reach for.
This is an ongoing project, not a finished product. Some entries lack a natural-language definition in one language and fall back to the other; some rarer words and multi-word phrases don't have a translation extracted at all yet, even where a definition exists. Corrections and edge cases are an active, continuing effort rather than something to fix once and leave.
Feedback, corrections, or questions: info@xeretadict.com.