A strait is a thin channel of a waterway that connects two large water bodies. Here is a list of Major Straits of the world:
Malacca Strait
Contiguous Landmass: Malay Peninsula and Indonesian island of "Sumatra"Joining Water Bodies: Indian Ocean and Pacific Ocean (China Sea)
Palk Strait
Contiguous Landmass: India and Sri LankaJoining Water Bodies: Bay of Bengal (northeast) and Arabian Sea (southwest)
Sunda Strait
Contiguous Landmass: Java island of Indonesia and Sumatra island of Indonesia
Joining Water Bodies: Java Sea and Indian Ocean
Bering Strait
Contiguous Landmass: Russia (Asia) and USA (America)Joining Water Bodies: Arctic Ocean and East Pacific ocean
Mozambique Channel
Contiguous Landmass: Mozambique and MadagascarJoining Water Bodies: Indian Ocean and Indian Ocean
Hormuz Strait
Contiguous Landmass: Iran and Oman
Joining Water Bodies: Gulf of Oman and Persian Gulf
Bab-el-Mandeb
Contiguous Landmass: Djibouti, Yemen and Eritrea of the Somali PeninsulaJoining Water Bodies: Red Sea and Gulf of Aden
Strait of Gibraltar
Contiguous Landmass: Spain and Spain
Joining Water Bodies: Atlantic Ocean and Mediterranean Sea
Bosphorus Strait (Strait of Istanbul)
Contiguous Landmass: Europe and AsiaJoining Water Bodies: Black Sea and Sea of Marmara
Florida Strait
Contiguous Landmass: Cuba and Florida (USA)Joining Water Bodies: Gulf of Mexico and Atlantic Ocean
Jamaica Channel
Contiguous Landmass: Jamaica and HispaniolaJoining Water Bodies: Caribbean Sea and North Atlantic
Yucatan Strait
Contiguous Landmass: Mexico and CubaJoining Water Bodies: Gulf of Mexico and Caribbean Sea
Bass Strait
Contiguous Landmass: Tasmania island and Mainland AustraliaJoining Water Bodies: Great Australian Bight and Tasman Sea
Korea Strait
Contiguous Landmass: Japan and South KoreaJoining Water Bodies: East China Sea and Sea of Japan
Ten Degree Channel
Contiguous Landmass: Car Nicobar Islands and Little AndamanJoining Water Bodies: Andaman Sea and Bay of Bengal
North Channel
Contiguous Landmass: Ireland and Scotland
Joining Water Bodies: Irish Sea and Atlantic Ocean
Otranto Strait
Contiguous Landmass: Italy and Albania
Joining Water Bodies: Adriatic Sea and Ionian Sea
Formosa Strait
Contiguous Landmass: China and TaiwanJoining Water Bodies: South China Sea and East China Sea
Cook Strait
Contiguous Landmass: North and South Islands of New ZealandJoining Water Bodies: Tasman Sea and South Pacific Ocean
Strait of Tartary
Contiguous Landmass: East Russia and Sakhalin Islands of RussiaJoining Water Bodies: Sea of Okhotsk and Sea of Japan
Bonifacio Strait
Contiguous Landmass: Corsica (France) and Sardinia (Italy)Joining Water Bodies: Tyrrhenian Sea and Mediterranean Sea
Mesina Strait
Contiguous Landmass: Italy and SicilyJoining Water Bodies: Tyrrhenian Sea and Ionian Sea
Davis Strait
Contiguous Landmass: Greenland and CanadaJoining Water Bodies: Baffin Bay and Labrador Sea (Atlantic Ocean)
Hudson strait
Contiguous Landmass: CanadaJoining Water Bodies: Gulf of Hudson (Hudson Bay) and Labrador Sea (Atlantic Ocean)
Strait of Dover
Contiguous Landmass: EnglishJoining Water Bodies: Great Britain from Continental Europe.