Homonym: Only (Sole)
The term "only" is an adverb used to indicate exclusivity or limitation. It signifies that something is singular or unique, often emphasizing that no other options or alternatives exist. For example, saying "I only have one apple" means there are no additional apples available.
In mathematics, "only" can also refer to a specific condition or exception. For instance, in a statement like "Only even numbers are allowed," it restricts the set of acceptable numbers to those that are even, excluding all odd numbers. This usage helps clarify rules and parameters in various contexts.