Uncountable nouns in Urdu grammar, known as “Ghair Shumariyaat” (غیر شماریات), refer to things that we cannot count and are usually not used with plurals. They can be tangible things like ‘sand’ (ریت) or ‘milk’ (دودھ), as well as intangible concepts like ‘knowledge’ (علم) or ‘beauty’ (حسینی). Learning these nouns is crucial for attaining fluency in Urdu as they form the backbone of many sentences.