  But Nominalism is not simply the rejection of universals or abstract objects. For if that were the case, a nihilist, someone who believed that there are no entities at all, would count as a nominalist. Similarly, someone who rejected universals or abstract objects but were agnostic about the existence of particulars or concrete objects would count as a nominalist. Given how the term ‘Nominalism’ is used in contemporary philosophy, such philosophers would not be nominalists. The word ‘Nominalism’ carries an implication that the corresponding doctrine asserts that everything is particular or concrete, and that this is not vacuously true.