• (Hà Nội)IPA^(key): [ʔo˧˦]
• (Huế)IPA^(key): [ʔow˨˩˦]
• (Saigon)IPA^(key): [ʔow˦˥]

ố (upper caseỐ)

1. The letterô insắc tone

• (Quốc ngữ letters)chữ cái;A a (À à,Ả ả,àã,Á á,Ạ ạ),Ă ă (Ằ ằ,Ẳ ẳ,Ẵ ẵ,Ắ ắ,Ặ ặ), â (Ầ ầ,Ẩ ẩ,Ẫ ẫ,Ấ ấ,Ậ ậ),B b,C c (Ch ch),D d,Đ đ,E e (È è,Ẻ ẻ,Ẽ ẽ,É é,Ẹ ẹ),Ê ê (Ề ề,Ể ể,Ễ ễ,Ế ế,Ệ ệ),G g (Gh gh,Gi gi),H h,I i (Ì ì,Ỉ ỉ,Ĩ ĩ,Í í,Ị ị),K k (Kh kh),L l,M m,N n (Ng ng,Ngh ngh,Nh nh),O o (Ò ò,Ỏ ỏ,Õ õ,Ó ó,Ọ ọ),Ô ô (Ồ ồ,Ổ ổ,Ỗ ỗ,Ố ố,Ộ ộ),Ơ ơ (Ờ ờ,Ở ở,Ỡ ỡ,Ớ ớ,Ợ ợ),P p (Ph ph),Q q (Qu qu),R r,S s,T t (Th th,Tr tr),U u (Ù ù,Ủ ủ,Ũ ũ,Ú ú,Ụ ụ),Ư ư (Ừ ừ,Ử ử,Ữ ữ,Ứ ứ,Ự ự),V v,X x,Y y (Ỳ ỳ,Ỷ ỷ,Ỹ ỹ,Ý ý,Ỵ ỵ)

ố

1. tostain(usually glass, fabric, etc.)

   Răng bịố

   Teeth arestained

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