The region of Southeast Asia — the part of Asia to the southeast, including countries such as Thailand, Vietnam, Indonesia, and Malaysia.
今年は東南アジアへバックパック旅行に行く予定です。
This year I plan to go backpacking in Southeast Asia.
東南アジア諸国は経済成長が著しいとよく報じられる。
Southeast Asian countries are often reported to have remarkable economic growth.
東南アジアの料理はスパイスやココナッツミルクを使った味付けが多い。
Southeast Asian cuisine often features spices and coconut milk in its flavors.
地図で見ると日本は東南アジアの北東に位置している。
On the map, Japan is located to the northeast of Southeast Asia.