noun
Mathematical term for the result of multiplication, as opposed to 商 for quotient, 和 for sum, and 差 for difference.
See also: 商
3と4の積は12です。
The product of 3 and 4 is 12.
二つの数の積を求めなさい。
Find the product of the two numbers.
noun
Measurement-related use mostly visible inside compounds such as 面積, 'area,' and 体積, 'volume,' rather than as a common standalone everyday noun.
この部屋の面積は二十平方メートルです。
The area of this room is twenty square meters.
箱の体積を計算する。
Calculate the volume of the box.
Sino-Japanese reading せき of 積. The kanji is conventionally associated with piling up or accumulating, which connects naturally with multiplication as repeated accumulation and with extent in compounds such as 面積 and 体積.