Chios (/ˈkaɪ.ɒs/; Greek: Χίος, pronounced [ˈçios]; Turkish: sakız alternative transliterations Khíos and Híos) is the fifth largest of the Greek islands, situated in the Aegean Sea, 7 kilometres (4.3 mi) off the Anatolian coast. The island is separated from Turkey by the Chios Strait. Chios is notable for its exports of mastic gum and its nickname is The mastic island.