1, s is the area in geometric calculation;

2. In algebra, s is the distance;

3. Statistically, s is the standard deviation;

4.s is the distance in the travel problem;

5. As far as time is concerned, s is a second;

6.s is an edge in a triangle congruence.

Area represented by S: It is a quantity representing the degree of two-dimensional figure or shape or plane layer in a plane.

Standard deviation expressed by s: it is most commonly used as a measure of statistical distribution in probability statistics.