Homonym: - (Symbol)
The symbol "-" is known as a hyphen. It is primarily used to connect words or parts of words, such as in compound adjectives like well-known or to join prefixes to words, as in re-enter. Hyphens help clarify meaning and improve readability in written language.
In addition to its role in grammar, the hyphen is also used in mathematics to indicate subtraction. For example, in the equation 5 - 3, the hyphen signifies that 3 is to be subtracted from 5. This dual function makes the hyphen a versatile symbol in both language and math.