The German word "vier" translates to "four" in English, but there are several other synonyms that can be used in both languages. In German, "quattuor" and "vierfach" are other ways to express the concept of four. In English, some synonyms for "four" include "quadruple," "tetrad," "quartet," and "quad." These words can be used to describe a group of four items or people, or to express the quantity of something that is four times larger than another. Using synonyms for common words like "four" can add variety to your writing and expand your vocabulary.