GoldenDict
Freemium
GoldenDict is a feature-rich dictionary lookup program, supporting multiple dictionary formats.
StarDict
Open Source
StarDict is a free GUI released under the GPL for accessing StarDict dictionary files.
Google Dictionary
Free
Google Dictionary was an online dictionary service of Google, originating in its Google Translate service.
dict.cc
Free
dict.cc is a free, multilingual online dictionary. The site's database can also be downloaded and used offline.
Compare Wiktionary with alternatives
Compare GoldenDict and Wiktionary and decide which is most suitable for you.
Compare Google Dictionary and Wiktionary and decide which is most suitable for you.
Compare StarDict and Wiktionary and decide which is most suitable for you.