数量 (shù liàng) is a compound noun meaning 'quantity'—the amount or number of something, especially when measured, counted, or compared. The first character 数 (shù) means 'number' or 'to count', while the second character 量 (liàng) means 'measure', 'capacity', or 'amount'. Together, they emphasize a measurable or countable totality—not just how many, but how much in a concrete, often objective sense.

This word is commonly used in formal, academic, commercial, and statistical contexts: for instance, when discussing inventory, population statistics, scientific data, or production output. It’s more precise and neutral than general terms like ‘some’ or ‘a lot’, and it frequently appears with measure words (e.g., 数量很大, 数量有限) or after classifiers (e.g., 商品的数量). Unlike colloquial expressions, 数量 rarely stands alone—it usually modifies or follows a noun or appears in comparative or descriptive phrases.