a mountainous peninsula of NE Egypt at the N end of the Red Sea, between the Gulf of Suez and the Gulf of Aqaba: occupied by Israel in 1967; fully restored by 1982
2. Mount Sinai
Sinai in American English
(ˈsaɪˌnaɪ; occas .; ˈsaɪneɪˌaɪ; saɪniˌaɪ)
Mountthe mountain (probably in the S Sinai Peninsula but not identified) where Moses received the law from God: Ex. 19