The antonyms for the term "break in two" can be "join together," "merge," "unite," or "connect." These terms suggest a sense of coming together or being whole, which is the opposite of breaking into two or becoming separated. For instance, when we hear about two friends who had a fight, we may wish for them to reconcile and join together once again. Similarly, when we talk about repairing or assembling something, we aim to merge the parts and make it one again. In a broader sense, the antonyms for "break in two" represent the idea of unity, while the term itself suggests division or separation.