จำนวน

Explanation

จำนวน centers on the idea of a number or quantity obtained by counting or measuring. It can appear before a noun, as in จำนวนคน, “the number of people.” It also commonly follows a noun to introduce a specific figure, as in นักเรียนจำนวน 20 คน, “20 students.” This pattern is especially common in news reports, official statements, and explanatory writing. Frequent expressions include จำนวนมาก, “a large number or amount,” and จำนวนหนึ่ง, “a certain number or amount.” It is also the standard word for “number” in mathematical terms such as จำนวนเต็ม, “integer.” จำนวน itself does not replace a numerical classifier: forms such as 20 คน, “20 people,” and 3 เล่ม, “three books,” still require the appropriate classifier.

Usage

It is used when stating or comparing numbers and quantities, such as the number of people, products, or applications. It occurs in everyday language, while constructions that introduce an exact figure are especially common in news, statistics, schools, workplaces, and official documents. It is also a basic term in mathematics.

Caution

จำนวน focuses on number or quantity, while เลข often means a numeral or identifying number, and ปริมาณ emphasizes a measurable amount. Also, จำนวน is not a substitute for the classifier required after a specific numeral.

1 number synonyms

• ปริมาณ

  ปริมาณ is especially common for measurable, continuous quantities such as water, heat, or workload. จำนวน is particularly common for the number of countable people or things, though the two words can overlap when expressing quantity.

• เลข

  lêek number

  เลข commonly refers to a numeral, figure, or identifying number. จำนวน focuses on how many or how much of something there is.