Sinai

American  

[sahy-nahy, sahy-nee-ahy] / ˈsaɪ naɪ, ˈsaɪ niˌaɪ /

noun

1. Also called Sinai Peninsula. a peninsula in northeastern Egypt, at the northern end of the Red Sea between the Gulfs of Suez and Aqaba. 230 miles (370 km) long.

2. Mount Sinai, the mountain, in southern Sinai, of uncertain identity, on which Moses received the law. Exodus 19.

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Sinai British  

/ ˈsaɪnaɪ, ˈsaɪnɪˌaɪ /

noun

1. 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. the mountain where Moses received the Law from God (Exodus 19–20): often identified as Jebel Musa, sometimes as Jebel Serbal, both on the S Sinai Peninsula

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Sinai Cultural  

1. Peninsula in northeastern Egypt (see also Egypt), bordered by the Gulf of Aqaba, an arm of the Red Sea, to the east, and the Gulf of Suez, another arm of the Red Sea, to the west.

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Discover More

In the Bible (see also Bible), Moses received the Ten Commandments on Mount Sinai.

Sinai has been the scene of fighting during the Arab-Israeli conflict. Israel conquered and occupied Sinai in the Six-Day War but returned the region to Egypt in 1982.

Other Word Forms

• Sinaic
  adjective
• Sinaitic
  adjective

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Etymology

Origin of Sinai

From Late Latin Sinai, from Greek Siná, from Hebrew Sīnaī, of uncertain origin and meaning

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Example Sentences

See Examples For:

Sinai

“It has been a sea change in the fundamentals underlying the fixed-income market and the economy,” Allen Sinai, president of consulting firm Decision Economics, said in an interview.

From The Wall Street Journal ● Oct. 11, 2026

Did Ms. Bar Sinai try to stop him?

From The Wall Street Journal ● Oct. 6, 2026

"At Mount Sinai we are creating and cryopreserving miBrains from patients," Dr. Blanchard added.

From Science Daily ● Oct. 1, 2026

Mount Sinai researchers have uncovered new details about how APOE4, the strongest known genetic risk factor for Alzheimer's disease, may contribute to brain damage.

From Science Daily ● Oct. 1, 2026

“Nah, nah, Mount Sinai Hospital,” he said and the driver took off.

From "Bodega Dreams" by Ernesto Quinonez

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