The "Plus Sign" is a mathematical symbol represented by two parallel horizontal lines that intersect at the center, forming a cross shape. It is commonly used to indicate addition in arithmetic, where it signifies the operation of combining two or more numbers. For example, in the equation 2 + 3, the plus sign shows that you should add 2 and 3 together to get 5. In addition to its mathematical use, the plus sign is also employed in various contexts, such as in computer programming to denote concatenation or in social media to indicate a positive action, like liking a post. Its versatility makes it a widely recognized symbol across different fields.