1A difference or gap between two or more things; a general term for disparity in amount, degree, or quality.
二人の年齢の差はあまり気にしていない。
I don't worry much about the age difference between the two of us.
給料に差があるのは不公平だと彼は主張した。
He argued that it's unfair for there to be a difference in pay.
経験の差を埋めるために新人研修を行う。
We run new-hire training to close the gap in experience.
二人の成績には大きな差がある。
There's a big gap between the two of them's grades.
2In mathematics, the value obtained by subtracting one number or quantity from another.
最高点と最低点の差は5点だった。
The difference between the highest and lowest scores was 5 points.
この二つの数の差を求めなさい。
Find the difference between these two numbers.