Web, No pronunciation scores, Free, ★
This valuable site has dictionaries in about 70 languages; 50 are not available elsewhere. Some words have audio, and the audio quality varies. Their Celtic dictionaries compare how each word varies across the Celtic languages.
They do not show sentences or grammar, and you usually find and display one word at a time, not, for example, "colors," "fruits," or "numbers."
They are based in Oregon, and the site is hosted at Swarthmore College.