The Vietnamese word "ròm" is primarily used to describe someone or something that is very thin or lean. It can often carry a connotation of being excessively thin, sometimes due to illness or malnutrition.
Cô ấy vừa ốm dậy, giờ người cô ấy gầy ròm.
Con mèo này quá gầy ròm.
In summary, "ròm" is an adjective in Vietnamese that describes someone who is very thin, often due to recent illness or malnutrition. It conveys a sense of fragility and can be used with care to avoid offense.