The phrase "cuts in half" is commonly used to describe the act of dividing something into two equal parts. Opposite to this phrase, there are several antonyms that indicate joining two pieces together. Examples of antonyms include "unite," "combine," "connect," "attach," "merge," "link," and "integrate." These words suggest the act of bringing two separate pieces together to create a single object or unit. Additionally, there are antonyms that imply the concept of increasing or making something larger. These words include "augment," "expand," "enlarge," "extend," and "multiply." Conversely, the phrase "cuts in half" can also be replaced with terms like "separates," "divides," "splits," or "parts.