noun, noun, used as a suffix
amount; quantity; volume; capacity; portion
Broad word for how much of something there is. It can stand alone as a noun, as in 量が多い, or appear suffix-like in compounds such as 仕事量, 運動量, 消費量, and 食事量.
仕事の量が多すぎる。
The amount of work is too much.
ご飯の量を少なめにしてください。
Please make the portion of rice a little smaller.
一日の運動量を増やした。
I increased my daily amount of exercise.
noun
generosity; magnanimity; tolerance
Rare as a standalone modern noun in this sense; the ordinary expression is usually 度量, especially in phrases like 度量が大きい. This sense refers to a person's inner capacity to accept others.
See also: 度量
古い文章では、「量が大きい人」が寛大な人を意味することがある。
In older writing, 量が大きい人 can mean a generous or magnanimous person.
noun
pramana; means of valid knowledge
Specialized term in Indian philosophy for a means by which accurate or valid knowledge is obtained; unrelated to the everyday sense of physical amount except by shared spelling.
インド哲学で、量は正しい認識を得る手段を指す。
In Indian philosophy, 量 refers to a means of obtaining valid knowledge.
The normal modern word for generosity, tolerance, or breadth of mind; standalone 量 with this meaning is rare.
The reading りょう is the Sino-Japanese reading of 量. The kanji spelling is conventionally associated with measuring and amount, and by extension with capacity or breadth of mind in older or compound uses; the detailed historical derivation is not specified.