Etymology

tam giác ‎(“triangle”) +‎ vuông ‎(“square”)

Pronunciation

• (Hà Nội) IPA^(key): [taːm˧˧ z̻aːʔk̚˧ˀ˦ vuɜŋ˧˧]
• (Huế) IPA^(key): [taːm˧˧ jaːʔk̚˦˥ vuɜŋ˧˧]
• (Hồ Chí Minh City) IPA^(key): [taːm˧˥ jaːʔk̚˦ˀ˥ vʲuɜŋ˧˥]