"Always" is an adverb that indicates a consistent or continual action or state. It suggests that something happens at all times without exception. For example, if someone says they will always be there for you, it means they intend to support you no matter the circumstances. In mathematics, "always" can relate to concepts like constants or universal truths, such as in the statement "2 + 2 always equals 4." In everyday language, it is often used to express reliability or permanence in relationships, commitments, or behaviors, emphasizing a sense of dependability.