Which word refers to smallness of number or fewness?

The term that denotes smallness of number or fewness is "paucity." This word specifically describes a situation where there is a scarcity or insufficiency in quantity, indicating that there is very little of something. For example, one might refer to the paucity of resources in a particular region, highlighting that there are not enough available resources to meet the needs of the population.

Other terms, while related to quantity, focus on different contexts. "Abundance" refers to a large quantity or ample supply, clearly opposing the concept of fewness. "Scarcity" suggests a limited availability but can imply a lack of sufficient quantity rather than directly indicating smallness of number. "Surplus," on the other hand, indicates an excess or more than what is needed, again contrasting with the notion of fewness. Therefore, "paucity" is the most precise choice for describing a small number or fewness.