Active (adjective) refers to a state of being engaged in physical or mental activity, participating actively rather than passively. It describes a person or thing that is energetic, dynamic, and involved in various actions, movements, or processes.
When referring to individuals, active denotes a person who is physically fit, regularly engages in exercise or sports, and maintains a healthy lifestyle. Such individuals demonstrate enthusiasm, vitality, and a high level of energy. In contrast, an active mind is characterized by alertness, quick thinking, and a sharp intellect.
In a broader sense, active can also describe objects or systems that are in operation or working effectively. For instance, an active volcano refers to a volcano that is currently erupting or has erupted in recent times. Similarly, in electronics, an active component or circuit is one that consumes or supplies energy and is capable of amplifying or processing signals, such as active sensors or active filters.
In various fields, the term active is employed to qualify processes, agents, or participants that exert influence, perform actions, or have an impact. For example, an active ingredient is the component in a medication or product that produces a therapeutic or desired effect. In financial contexts, an active market denotes a market in which there is a high volume of buying and selling, with constant price fluctuations. Furthermore, in linguistics, active voice refers to a grammatical construction in which the subject of a sentence performs the action, as opposed to passive voice where the subject receives the action.
Overall, active is a versatile term that describes a person, object, or process that is engaged, lively, and involved in actions or movements rather than being passive or idle.
