KOReader Dicts

All dictionaries

English Portuguese

English to Brazilian Portuguese, built by pivoting Princeton WordNet 3.0 through OpenWN-PT and enriching with the Portuguese Wiktionary. Includes an inflection index, so looking up a word as it appears in a book works.

172,842
entries
362,335
inflected forms
57.35%
with a translation
94.34%
top-10k coverage

Download

en-pt.zip 14.9 MB · StarDict · CC-BY-SA-4.0

Install on your e-reader

Unzip and copy the folder onto your device so that you end up with:

koreader/data/dict/en-pt/en-pt.ifo

Restart KOReader. This dictionary includes an inflection index, so looking a word up exactly as it appears in a book works.

Full instructions for every device · KOReader wiki

Coverage

How many of the most common words in the source language this dictionary can actually resolve, counting words reached through the inflection index.

Frequency bandFoundAs headwordVia inflectionCoverage
top 1,00098991376
98.9%
top 5,0004,8574,133724
97.14%
top 10,0009,4347,6291,805
94.34%
top 50,00038,38327,51010,873
76.77%

Measured against OpenSubtitles 2018 English top 50k (hermitdave/FrequencyWords).

What is in an entry

Entries with a real translation99,120 (57.35%)
Entries with only a definition, no translation73,722
Entries with a usage example34,710 (20.08%)
Entries with inflected forms169,306 (97.95%)
Entries with pronunciation30,992
Senses299,849
Mean definition length61.9 characters
Mean translations per entry1.62

An entry counted as “definition only” is one where the source wordnet knows the concept but has no word for it in the target language. These are shipped because a definition still helps a reader, and counted separately because calling them translations would be dishonest.

Sources and licence

SourceLicenceCredit
omw-ptCC-BY-SA-4.0OpenWN-PT (de Paiva & Rademaker), via Open Multilingual Wordnet 1.4
pwn30WordNet-3.0Princeton University WordNet 3.0
wikt-en-ptCC-BY-SA-4.0English Wiktionary via kaikki.org (wiktextract)
wikt-ptCC-BY-SA-4.0Portuguese Wiktionary via kaikki.org (wiktextract)

Bundled under CC-BY-SA-4.0, the least restrictive licence that covers every source above. Each source’s own terms are reproduced in the ATTRIBUTION file inside the download.