According to one common terminology, each "soap bubble" of spacetime is denoted as a universe, whereas our particular spacetime is denoted as the Universe, just as we call our moon the Moon.
Menurut salah satu istilah umum, masing-masing "gelembung sabun" ruang-waktu dilambangkan sebagai alam semesta, seperti yang kita sebut bulan kami Bulan.