Etymology

From bóng ‎(“ball”) + bầu dục ‎(“elliptical”).

Pronunciation

• (Hà Nội) IPA^(key): [ˀɓɐwŋ͡m˧ˀ˦ ˀɓɜw˨˩ z̻ʊwʔk͡p̚˧ˀ˨ʔ]
• (Huế) IPA^(key): [ˀɓɐwŋ͡m˦˥ ˀɓɜw˧˧ jʊwʔk͡p̚˨ˀ˨ʔ]
• (Hồ Chí Minh City) IPA^(key): [ˀɓɐwŋ͡m˦ˀ˥ ˀɓɜw˨˩ jʊwʔk͡p̚˨ˀ˧ʔ]
• (Hanoi) [bɔŋ˦˥ ɓøu˧˨ zukˀ˧˨]
• (Ho Chi Minh City) [bɔŋ˦˥ ɓøu˧˨ jukˀ˧˨˧]