Normal space is a term that describes the physical area within which objects exist in a state that is familiar to us. There are a variety of synonyms for this term, each with their own connotations. The phrase "regular space" is one such synonym, emphasizing the idea of commonality and conventionality. "Everyday space" implies a sense of familiarity, similarly emphasizing the unremarkable nature of the space. Other synonyms include "ordinary space," "conventional space," and "commonplace space," all of which suggest a sense of normalcy and typicality. Ultimately, these synonyms all serve to communicate the same idea - that this is a space that adheres to our expected norms and conventions.