None (The concept of absence or lack)

None refers to the complete absence or lack of something. In everyday language, when we say "none," we mean there is not a single instance or quantity of whatever is being discussed. For example, if you ask if there are any cookies left and the answer is "none," it means there are zero cookies available. The concept of none can apply in various contexts, such as mathematics, philosophy, and everyday situations, symbolizing emptiness or the absence of value or presence in a given context.