Key to the house near the quay

In the name of Allah, the Most Gracious, the Most Merciful,

If Bahasa Malaysia is the national language of Malaysia, why do developers still use English names for their projects?

Behold, Sunway South Quay.

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Word of the day:

Quay

According to dictionary.com:
Noun - a landing place, esp. one of solid masonry, constructed along the edge of a body of water; wharf.

Quay is pronounced the same as key.

Allah knows best.