giấy than

giấy (“paper”) +‎ than (“coal”).

• (Hà Nội) IPA^(key): [zəj˧˦ tʰaːn˧˧]
• (Huế) IPA^(key): [jəj˨˩˦ tʰaːŋ˧˧]
• (Saigon) IPA^(key): [jəj˦˥ tʰaːŋ˧˧]

(classifier tờ, tấm) giấy than

1. carbon paper