What does active mean?
Active describes something or someone engaged in action, movement, or energetic pursuit, standing in contrast to passive or dormant states. As an adjective, it applies broadly: an active child plays energetically, an active volcano may erupt, an active ingredient produces a chemical effect, and an active mind engages readily with ideas. The word also serves as a noun in specialized fields — notably grammar, where the active voice denotes sentences whose subjects perform the verb's action, and finance, where an active is a security bought and sold. Derived from the Latin activus, itself rooted in agere ('to do'), it shares ancestry with words like agent and agenda. Its connotations are largely positive, suggesting vitality, initiative, and effectiveness, which explains its prominence in phrases such as 'active lifestyle' and 'active duty'.
Engaging or ready to engage in energetic pursuit; involving action rather than passivity.
"He stays active by cycling to work every day."
Also used technically in grammar (active voice), chemistry (active ingredient), volcanology (active volcano), and military service (active duty).
A form of a verb expressing action performed by the subject (the active voice), or, in finance, a security traded on an exchange.
"Write the sentence in the active for greater clarity."
As a financial term, often pluralized as 'actives'.
Used mainly in finance to refer to securities that are heavily traded, or in chemistry for active ingredients.
"Tech stocks were among the day's most traded actives."
The word 'active' traces back to the Latin agere — 'to do' — making it a linguistic cousin of 'agent', 'agenda', and even 'agile'.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of active
Active derives from the Latin activus, meaning 'disposed to action', formed from actus, the past participle of agere, 'to do or drive'. It entered English via Old French around the late Middle English period, initially carrying philosophical weight in describing causes or principles that produce effects. Its Latin root also underlies cognates such as act, action, agent, and agenda, all sharing the core sense of doing or driving forward.
Related word forms
How active is actually used
Generally neutral to positive in connotation, suggesting energy and engagement. In grammar and chemistry contexts it carries precise technical meanings that differ from everyday usage.
Easily confused with active
Passive describes receiving or allowing action without resistance, whereas active describes initiating or engaging in action.