"Get floor" is not a word or phrase that exists in English. However, if we consider the word "floor" by itself, we can identify several antonyms. The opposite of floor can be ceiling or roof, which are the upper limits of a space. It can also be sky, which is the limitless expanse of air and stars above us. In a more figurative sense, the opposite of floor could be ascent, climb, or rise, as opposed to a descent or fall. Another poetic antonym for floor could be "void," which suggests lack of substance or solidity. When thinking about the antonyms for "floor," it's important to consider the context in which the word is used.