The plural noun 'values' is an abstract noun (and an uncountable noun) as a word for the principles and beliefs that influence the behavior and way of life of a person or a particular group; a word for a concept.The count noun 'value' (values) is an abstract noun as a word for the amount that something is worth compared to the money that it costs; the degree to which someone or something is important or useful; a word for a concept.The word 'values' is also the third person, singular of the verb to value.