What are some alternatives?
When comparing Dictionary.com and GoldenDict, you can also consider the following products
Lingoes - Lingoes is an easy and intuitive dictionary and text translation software.
Google - Google Search, also referred to as Google Web Search or simply Google, is a web search engine developed by Google. It is the most used search engine on the World Wide Web
Wiktionary - Open Source wiki-dictionary by the Wikimedia foundation
Google Translate - Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.
Linguee - English Dictionary and Translation Search with 1,000,000,000 example sentences from human translators. Languages: English, German, French, Spanish, and Portuguese
StarDict - StarDict is a Cross-Platform and international dictionary Software.