The antonyms for the word "butt on" are "take off" and "remove." These words suggest the opposite action of placing something on or attaching it to another object. "Take off" implies physically removing an object from a surface, while "remove" implies detaching or separating something from another object. These antonyms can be used in a variety of contexts, such as removing clothing or accessories, dismantling a structure, or detaching a device from a computer. Knowing the antonyms for words is essential for effective communication, as it helps convey precise meaning and reduces any confusion.