Refers to a translated text or a version in another language. As a suffix, it attaches to language names or descriptors (e.g., 英語訳, 完全訳).
この本の日本語訳はまだ出ていない。
The Japanese translation of this book hasn't been published yet.
This novel also has a German translation.
彼はシェイクスピアの新訳を出した。
He published a new translation of Shakespeare.
英語訳で読んだ方が分かりやすかった。
It was easier to understand reading the English translation.
The publisher released a new translation of the book.
訳 refers to a written translation of a text, while 通訳 refers to spoken interpretation between speakers, so they are not interchangeable despite sharing 訳.
Written the same as 訳（わけ, 'reason'), 訳（やく) is a completely different word meaning 'translation'.
役 (やく) means a role or duty, while 訳 (やく) is a homophone meaning translation or reason, so the kanji must not be mixed up.
translation · deciphering; decoding · translation (biology)
interpretation; oral translation · interpreter
translate; interpret
English translation
Japanese translation; translation into Japanese
literal translation; direct translation
free translation; liberal translation
translation equivalent; gloss; translated word
mistranslation; translation error
The kanji 訳 originally meant 'reason' or 'meaning', and its use for 'translation' is a semantic extension from interpreting meaning across languages.
translator
Japanese translation; translation into Japanese
translator's notes; translation with annotations
bilingual text; parallel text; text with translation
new translation · post-Xuanzang Chinese translation (mid 7th century onward)
translated text; translation; rendering
abridged translation; abridgment
translated book; translation
complete translation; full translation
transliteration; phonetic transcription · phonetic representation using Chinese characters · reading aloud for the visually impaired
supervising a translation; translation supervision
translation; translating
translate; interpret
retranslation; revised translation; new translation
translation of lyrics; lyric translation
Braille transcription; translating into Braille
complete translation; full translation
modern translation; translation into modern language
rough translation; preliminary translation; draft translation
French translation
provisional translation; tentative translation