What are some alternatives?
When comparing Eko and GoldenDict, you can also consider the following products
ECG for Apple Watch - ECG app and irregular heart rhythm notification
Dictionary.com - Dictionary.com is the world’s leading digital dictionary. We provide millions of English definitions, spellings, audio pronunciations, example sentences, and word origins.
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
The Online Slang Dictionary - Learn thousands of real slang words or add your own.
Wiktionary - Open Source wiki-dictionary by the Wikimedia foundation