/haɪ siːz/ – Phrase
Definition: biển khơi, biển quốc tế.
A more throughout explanation: The term “high seas” refers to the open ocean beyond the territorial waters of any country, where no single nation has jurisdiction. This area is considered international waters and is subject to the principles of freedom of navigation, overflight, and fishing for all nations.
Example: The ship was lost at sea, beyond the territorial waters of any country, in what is known as the high seas.