The phrase "a roof over one's head" is a common expression that refers to having a place to live or a shelter to protect oneself from the elements. There are several synonyms for this phrase, including "shelter," "residence," "dwelling," "housing," "lodging," "accommodation," and "home." These words all convey the idea of having a place to live, but they can also have slightly different connotations. "Shelter" may imply a temporary or emergency residence, while "home" suggests a more permanent and personal living environment. "Dwelling" and "residence" are more formal synonyms, while "lodging" and "accommodation" may suggest a shared or temporary living space. Regardless of the word used, having a roof over one's head is a basic human need and a fundamental aspect of security and stability.