To Translate
transitive verb, godan verb
Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means translate so the verb version would be to translate.
The reading for the kanji part is surprisingly the やく you learned with it, even you wouldn't expect that. I suppose that's the kind of thing you have to look forward to if you were to go into translating.
この単語を訳すのは難しい。
This word is difficult to translate.