You are downloading the Dictionary.com XAP file v184.108.40.206 for Windows Phone. Dictionary.com is a free Books & Reference App: The FREE Dictionary.com app delivers trusted reference content from Dictionary.com and Thesaurus.com, including over 2,000,000 words. It also features audio. You can now download the offline XAP package file to install & try it.
Download Locations for Dictionary.com 220.127.116.11 XAP file
To try to install it manually from an SD card, you should choose one of the server location above to get the offline Dictionary.com XAP file, move the file to your phone's SD card and then tap 'Install local apps' in the phone's App list.