Alternate font characters, also known as special characters or symbols, are non-standard characters that are not found on a standard keyboard. They can include things like mathematical symbols, currency symbols, and foreign language characters.
Alternate font characters can be used to add flair and personality to your writing, or to make your text more readable and understandable. For example, you might use a heart symbol in a love letter, or a copyright symbol to protect your work. They can also be used to create specialized documents, such as technical manuals or mathematical equations.