Sinai (n.)a mountain peak in the southern Sinai Peninsula (7,500 feet high); it is believed to be the peak on which Moses received the Ten Commandments;
Synonyms: Mount Sinai
Sinai (n.)a desert on the Sinai Peninsula in northeastern Egypt;
Synonyms: Sinai Desert
Sinai (n.)a peninsula in northeastern Egypt; at north end of Red Sea;
Synonyms: Sinai Peninsula