Dictionary.com Alternatives for Online

Ludwig is a smart translator and linguistic search engine which helps you to find the perfect word or sentence to express your ideas.

StarDict is a free GUI released under the GPL for accessing StarDict dictionary files.

WordReference is an online translation dictionary for, among others, the language pairs English-French, English-Italian, English-Spanish, French-Spanish, Spanish-Portuguese and English-Portuguese.

Wiktionary is a multilingual, web-based project to create a free content dictionary of all words in all languages.

Tatoeba.org is a free collaborative online database of example sentences geared towards foreign language learners.

dict.cc is a free, multilingual online dictionary. The site's database can also be downloaded and used offline.

Reference.com is an online encyclopedia.

Merriam-Webster is an online dictionary.

Wordo helps you find word definitions.

Wordnik is an online English dictionary and language resource that provides dictionary and thesaurus content.

Yandex.Translate (Yandex.Translation) is a web service for the translation of text or web pages into another language.