GoldenDict-ng - https://github.com/xiaoyifang/goldendict-ng/releases

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Dictionaries for GoldenDict:
https://rutracker.org/forum/viewtopic.php?t=3582459
https://rutracker.org/forum/viewtopic.php?t=3369767
https://library.kiwix.org/#lang=eng&q=&category=wikipedia http://dadako.narod.ru/paperpoe.htm
https://cloud.freemdict.com/index.php/s/pgKcDcbSDTCzXCs

Creating dictionaries for GoldenDict:
http://languagehopper.blogspot.com/2013/06/how-to-make-your-own-stardictoldendict.html
https://code.google.com/archive/p/stardict-3/downloads

Google Translate - https://translate.google.com/

Online dictionaries:

Multitran - https://www.multitran.com/

Collins COBUILD - https://www.collinsdictionary.com/

Oxford English Dictionary - https://www-oed-com.i.ezproxy.nypl.org/

Random House Unabridged Dictionary - https://www.dictionary.com/

Free Dictionary. Idioms and phrases - https://idioms.thefreedictionary.com/

Visual Dictionary - http://www.visualdictionaryonline.com/

Encyclopedias:

Oxford Reference - https://www-oxfordreference-com.i.ezproxy.nypl.org/

Encyclopedia.com - https://www.encyclopedia.com/

Encyclopaedia Britannica:
https://rutracker.org/forum/viewtopic.php?t=4891866
https://rutracker.org/forum/viewtopic.php?t=6307320
https://rutracker.org/forum/viewtopic.php?t=6304689
https://www.britannica.com/
https://academic.eb.com/levels/collegiate
https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica

Encyclopedia Americana - https://rutracker.org/forum/viewtopic.php?t=6311493

Columbia Encyclopedia - https://www.infoplease.com/encyclopedia

Stanford Encyclopedia of Philosophy - https://plato.stanford.edu/index.html

Internet Encyclopedia of Philosophy - https://iep.utm.edu/metaethi/

Encyclopedia of Philosophy - https://www.myanonamouse.net/t/80064

Encyclopedia of Diderot and D’Alambert - https://quod.lib.umich.edu/d/did/title/A.html

Encyclopedia.com - https://www.encyclopedia.com/

World History - https://www.worldhistory.org/

Larousse - https://www.larousse.fr/encyclopedie

Treccani - https://www.treccani.it/

Our World in Data - https://ourworldindata.org/

Statista - https://www-statista-com.i.ezproxy.nypl.org/

Fun command-line dictionary

Some StarDict dictionaries are hyphenated. They are not very convenient for GoldenDict, but they are great for Windows command-line.

To run StarDict dictionary in command-line

1) install sdcv:

MSYS - https://www.msys2.org/

pacman - S mingw-w64-sdcv

2) create system variable:
STARDICT_DATA_DIR
C:\msys64\mingw64\bin\dict

3) put stardict-dictd-web1913-2.4.2 into dict folder

4) add sdcv to PATH

Then:
Win+R cmd
sdcv

You can make .bat file:
C:\msys64\mingw64\bin\sdcv.exe