What are some alternatives?
When comparing Dictionary.com and Linguee, you can also consider the following products
GoldenDict - The program has the following features: Use of WebKit for an accurate articles' representation, complete with all formatting, colors, images and links.
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
Lingoes - Lingoes is an easy and intuitive dictionary and text translation software.
QuestSoft QTranslate - QTranslate is a free translator for Windows.
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.