Google is updating its Google Translate service with a few new features today. Among the new features is grouped clusters of synonyms for easier viewing, and frequency indicators that mark translations as “common, uncommon, or rare”. Google also explained a new “reverse translations” feature:

Our users often tell us that they check our translations by translating them back into their original language. Reverse translations can distinguish translations of different meanings and reveal subtle differences among similar words. Each translation is now annotated with its most frequent reverse translations.

The new grouped synonyms will initially only be available when translating into English, but Google said more languages will be added soon. Google also described how the frequency indicators will work:

Frequencies. The French novelist Gustave Flaubert was known to spend hours on end in pursuit of le mot juste—the perfect word. At Google, we prefer to deliver results in an instant, ranked in order of relevance. Frequency indicators now mark each translation as common, uncommon, or rare, based on the vast number of translations we use to train our system. The rarest translations are hidden by default, but appear easily with a click. Your search for the perfect translation should now be more efficient than ever.

Synonyms. Languages often contain different words that share a common meaning. Instead of one long list, our results now group synonymous translations together, so that you can quickly identify clusters of related words.