sˈɪblɪŋ sˈɛɡmənts, ðoʊz æt ðə sˈeɪm dˈɛpθ lˈɛvəl, ʃˈɛɹ ðə sˈeɪm mˈɛmɚɹi, kˈɔːld ˌoʊvɚlˈeɪ ɹˈiːdʒən ɔːɹ dˌɛstɪnˈeɪʃən ɹˈiːdʒən.
Sibling segments, those at the same depth level, share the same memory, called overlay region or destination region.