The strait between the Malay Peninsula and Sumatra; it connects the Pacific Ocean to the east with the Indian Ocean to the west and is an important shipping lane Open English WordNet

Malacca Strait is a narrow stretch of water, 500 mi long and from 40 to 155 mi wide, located between the Indonesian island of Sumatra to the southwest and the Malay Peninsula to the northeast, connecting the Andaman Sea and the South China Sea As the main shipping channel between the Indian Ocean and South China Sea, it is one of the most important shipping lanes in the world. Wikipedia

A major waterway separating Malaya and Sumatra Wikipedia Disambiguation

Strait between the Malay Peninsula and the Indonesian island of Sumatra, linking the Singapore Strait and the Southern China Sea, to the south-east, with the Andaman Sea bordering the Indian Ocean, to the north-west Wikidata

A strait between the Malay Peninsula and Sumatra. Wiktionary