This article contains step-by-step guide how to install the following converted dictionaries on your mac:

1. LingvoUniversal English-Russian dictionary with sound
2. LingvoUniversal Russian-English dictionary

I suppose that

• the downloaded files are automatically placed to your userhome directory “Downloads”
• your mac user is able to run the “sudo” command (this is true, if the “Allow to administer your computer” checkbox in “Preferences”->”Users”->”YourAccount” is enabled)

To install the dictionaries, follow the actions below.

1. Download the dictionary archives:
• LingvoUniversal_EnRu_MacOSX.tgz (105 Mb)
• LingvoUniversal_RuEn_MacOSX.tgz (57 Mb)
2. Open the “Terminal” program (“Applications” -> “Utilities” -> “Terminal”) and execute the following commands:
• [ -d /Library/Dictionaries/ ] || sudo mkdir -p /Library/Dictionaries/
  – this command will check if the /Library/Dictionaries directory exists, and if not – it will be created; the creation uses the “sudo” command, therefore you will be asked to enter your passowrd to create it (because only superuser can create directories inside of /Library/)
• sudo tar xfz ~/Downloads/LingvoUniversal_EnRu_MacOSX.tgz -C /Library/Dictionaries/
  sudo tar xfz ~/Downloads/LingvoUniversal_RuEn_MacOSX.tgz -C /Library/Dictionaries/
  – these two command extract one by one dictionaries to the /Library/Dictionaries directory; the extraction uses the “sudo” command, therefore you will be asked to enter your passowrd to create it (because only superuser can create directories inside of /Library/)
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3. Enable the dictionaries in your Apple Dictionary Preferences (and probably change the order).

Enjoy!

P.P.S. This dictionaries placed here only for test and demonstration purposes. If you want to use them, I would recommend you to buy the official ABBYY Lingvo software… buy at least Windows version and use the converted dictionaries under your MacOS.