The term THREE in German is 'DREI', which is a four-letter word. The number THREE is an important part of many cultures and religions, and is often used to represent the concept of completeness or perfection. In Christianity, the number THREE is associated with the Holy Trinity, and in Judaism, it is associated with the THREE patriarchs Abraham, Isaac, and Jacob. In mathematics, THREE is the first odd prime number, and it is also the smallest number of sides that can form a polygon.