"From here to eternity" is an idiom that signifies an indefinite and infinite amount of time or space. Synonyms for this phrase could include "forever and a day," indicating an endless time frame, or "across the universe," referring to a vast expanse. Additionally, "endlessly," "infinitely," and "limitlessly" convey the idea of an unending duration. For a more specific meaning, "far and wide" describes an expansive space, while "ad infinitum" implies an endless repetition or continuation of a process. Ultimately, the synonyms for "from here to eternity" emphasize the notion of something stretching out without limitation in time or space.