In two Definition 1 of 3Pro Tip 1/3Physical Separation Used when something physical is broken or divided into two distinct pieces. The mirror fell and split in two. Pro Tip 2/3Complete Division Emphasizes that the two parts are completely separate and distinct. The magician sawed the box in two. Pro Tip 3/3Equal Portions Suggests that the two parts are meant to be as equal as possible. Please cut the cake in two.