The term "crossing up" implies confusion, deception or making things difficult for someone. The antonyms for crossing up can be simplifying, clarifying, aiding, guiding or assisting. When we simplify things, we break down complex ideas into simpler concepts, making it easier for someone to understand. Clarifying helps to remove doubts, confusion and gives a clear picture of the situation. Aiding and guiding are similar, as they involve providing support and help to someone who is struggling. By doing so, we make their journey smoother and more comfortable. Therefore, using these antonyms for crossing up in our daily communication can make a significant difference in how we interact with others.