• WordNet 3.6
    • adj active characterized by energetic activity "an active toddler","active as a gazelle","an active man is a man of action"
    • adj active engaged in full-time work "active duty","though past retirement age he is still active in his profession"
    • adj active full of activity or engaged in continuous activity "an active seaport","an active bond market","an active account"
    • adj active tending to become more severe or wider in scope "active tuberculosis"
    • adj active disposed to take action or effectuate change "a director who takes an active interest in corporate operations","an active antagonism","he was active in drawing attention to their grievances"
    • adj active (of e.g. volcanos) erupting or liable to erupt "active volcanos"
    • adj active (of e.g. volcanos) capable of erupting
    • adj active (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being
    • adj active expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions"
    • adj active exerting influence or producing a change or effect "an active ingredient"
    • adj active (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions
    • adj active in operation "keep hope alive","the tradition was still alive","an active tradition"
    • adj active taking part in an activity "an active member of the club","he was politically active","the participating organizations"
    • adj active engaged in or ready for military or naval operations "on active duty","the platoon is combat-ready","review the fighting forces"
    • n active a person who is a participating member of an organization "the club issues a list of members, both the actives and the retirees"
    • n active the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb "`The boy threw the ball' uses the active voice"
    • n active chemical agent capable of activity
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Japan has approximately 200 volcanoes and is home to 10% of the active volcanoes in the world
    • Active (Gram) Applied to a form of the verb; -- opposed to passive. See Active voice, under Voice.
    • Active (Gram) Applied to all verbs that express action as distinct from mere existence or state.
    • Active (Gram) Applied to verbs which assert that the subject acts upon or affects something else; transitive.
    • Active Brisk; lively; as, an active demand for corn.
    • Active Given to action rather than contemplation; practical; operative; -- opposed to speculative or theoretical; as, an active rather than a speculative statesman.
    • Active Given to action; constantly engaged in action; energetic; diligent; busy; -- opposed to dull sluggish indolent, or inert; as, an active man of business; active mind; active zeal.
    • Active Having the power or quality of acting; causing change; communicating action or motion; acting; -- opposed to passive, that receives; as, certain active principles; the powers of the mind.
    • Active Implying or producing rapid action; as, an active disease; an active remedy.
    • Active In action; actually proceeding; working; in force; -- opposed to quiescent dormant, or extinct; as, active laws; active hostilities; an active volcano.
    • Active Quick in physical movement; of an agile and vigorous body; nimble; as, an active child or animal. "Active and nervous was his gait."
    • Active Requiring or implying action or exertion; -- opposed to sedentary or to tranquil; as, active employment or service; active scenes.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: When the Pez mint dispenser was first introduced it was meant to replace the activity of smoking
    • active Having the power or property of acting; tending to cause change or communicate action or motion; capable of exerting influence: opposed to passive: as, attraction is an active power.
    • active Specifically In medicine, acting quickly; producing immediate effects: as, active remedies or treatment.
    • active Having the power of quick motion, or disposition to move with speed; nimble; lively; brisk; agile: as, an active animal.
    • active Busy; constantly engaged in action; acting with vigor and assiduity: opposed to dull, slow, or indolent: as, an active officer; also to sedentary: as, an active life.
    • active In a state of action; marked by movement or operation; in actual progress or motion; not quiescent, dormant, or suspended: as, to take active proceedings against an offender; to engage in active hostilities.
    • active Hence In com., marked by quickness or frequency; brisk; lively; coming or moving freely or abundantly: as, an active trade or demand for goods; active freights or stocks. Requiring action or exertion; practical; operative; producing real effects: opposed to speculative: as, the active duties of life; the active powers of the mind.
    • active In grammar, signifying the performance and not the endurance of an action: opposed to passive. Said of a verb or verb-form, and used especially in the case of languages which, like Latin, have a nearly complete passive conjugation of the verb, or else, like Greek and Sanskrit, a partial one; but also, less properly, of those which, like English and French, have a system of verb-phrases with passive meaning, made with an auxiliary. Some grammarians (quite improperly) use active as equivalent to transitive.
    • active Reid uses the term to denote the will, appetites, affections, etc.; but that use has been generally condemned.
    • active The state of having a place on the active list, under full pay: used in contradistinction to being on the retired list, under reduced pay.
    • active Active regards either mind or body; there is no sinister sense of the word. The activity may be merely for its own sake. Active is opposed to lazy, inert, or quiescent: an active mind, life, person.
    • active Busy is active about something that is supposed to be useful. As applied to disposition, the word has acquired a bad sense, that of meddlesome: a busybody; he is too busy about others' affairs. An officious person is one whose efforts to be active or busy for others' benefit come, through his lack of judgment, to be regarded as annoying or intrusive. See impertinent.
    • active In psychology, representative of a type of character whose dominant characteristic is a natural and constantly renewed tendency to action.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: There are over one billion people that are actively involved in rice growth
    • adj Active akt′iv that acts: busy: nimble: practical, as opposed to speculative: effective:
    • adj Active akt′iv (gram.) transitive
    • ***


  • Ludwig Wittgenstein
    “Philosophy is not a theory but an activity.”
  • Arnold Bennett
    “We need a sense of the value of time -- that is, of the best way to divide one's time into one's various activities.”
  • Paul J. Meyer
    Paul J. Meyer
    “Plan your progress carefully; hour-by hour, day-by-day, month-by-month. Organized activity and maintained enthusiasm are the wellsprings of your power.”
  • Thomas B. Macaulay
    “A church is disaffected when it is persecuted, quiet when it is tolerated, and actively loyal when it is favored and cherished.”
  • E. J. Hobsbawm
    E. J. Hobsbawm
    “There is not much that even the most socially responsible scientists can do as individuals, or even as a group, about the social consequences of their activities.”
  • Samuel Johnson
    “Sorrow is the rust of the soul and activity will cleanse and brighten it.”


Webster's Revised Unabridged Dictionary
F. actif, L. activus, fr. agere, to act


In literature:

Getting the money to carry on these extensive activities.
"Secret Armies" by John L. Spivak
Everywhere the white race urged activity like one who sits behind a horse and goads it with the whip.
"The Philippine Islands" by John Foreman
The most active movements into the Old West occurred after 1730.
"The Frontier in American History" by Frederick Jackson Turner
Dick, who had been accustomed to an active life, began to grow weary at having nothing to do.
"The Rival Crusoes" by W.H.G. Kingston
No doubt some names have been omitted but not of any who took an active or important part in political affairs.
"The Journal of Negro History, Volume 5, 1920" by Various
It is just as true in her case as in man's, that proper brain activity stimulates physical activity.
"The Education of American Girls" by Anna Callender Brackett
Congestion is active or passive.
"Special Report on Diseases of the Horse" by United States Department of Agriculture
This is effected in their case by the high development of what we must call active touch.
"Essays Towards a Theory of Knowledge" by Alexander Philip
All the pleasant, kindly activities of common intercourse were over.
"The History of Sir Richard Calmady" by Lucas Malet
During the lull in the fighting on land, to which reference has been made, there was much activity in the air.
"The Story of the Great War, Volume V (of 12)"

In poetry:

If to some lives at least comes a stage
When, all active man now left behind,
They enter on the treasure of old age,
This autumn of the mind.
"Ode On The Death Of Pius The Twelfth" by A D Hope
How good, how grateful, and how right,
To praise him with the dawning light,
And meditate with active mind
On th' attributes to God assign'd?
"A Midnight Meditation" by Rees Prichard
Blest be the boy, by virtue nurst,
Who knows not aught of fear's controul,
And keeps, in peril's sudden burst,
The freedom of an active soul.
"The Stag" by William Hayley
Let not To-morrow, but To-day,
Your ever active thoughts engage;
Frisk, dance, and sing, and have your fling,
Unharmed, unawed of crabbed Age.
"A Roman Winter-Piece" by Eugene Field
One morning in April, a short time ago,
Libbie was active and gay;
Her Saviour called her, she had to go,
E're the close of that pleasant day.
"Little Libbie" by Julia A Moore
For many hours - for many days -
For many weeks performed each brother,
For each was active in his ways,
And neither would give in to t'other.
"John and Freddy" by William Schwenck Gilbert

In news:

Roswell is a short drive away for people who want to go there and enjoy the "relaxed, suburban chic" activities it provides.
Unnerving as it is, amazing burst of seismic activity should lessen in time.
Being more active has health benefits in the long run.
Activity Linked To Less Age-Related Brain Change.
The former street activist has tempered his style, become friends of the president and broadened his civil rights activism to include causes like immigration and same-sex marriage.
Undergraduate SASES chapters make presentations about club activities in an attempt to prove they are the club of the year.
Stapled peptides are a result of Aileron 's peptide stabilization technology, which locks peptides into their biologically active shape, mimicking the structures found in nature.
The alert means that air quality is expected to be poor and residents are advised to reduce driving and avoid outdoor activities during the hottest parts of the day.
TRAQPak FBO is a web based live flight tracking aircraft activity analysis and market intelligence reporting tool that analyzes the current and historical trends of aircraft activity.
News Events & Activities Schedules/Activities Celtic rock band performs free concert Sunday in Azalea Park.
News Events & Activities Schedules/Activities 'The Boardinghouse ' opens Friday on Harbor stage.
News Events & Activities Schedules/Activities 'The Boardinghouse' opens Friday on Harbor stage.
These active optical cable assemblies use proprietary technology yielding a lower cost per 10G link than active copper cables.
On this week's Global Activism, we decided to catch up with one of the 90 some groups that will be at the Global Activism Expo on April 30.
An "active to extremely active" hurricane season is expected for the Atlantic Basin this year according to the seasonal outlook issued Thursday by NOAA's Climate Prediction Center.

In science:

Consider an active dipole σij , and let Gk be the set of neighboring active dipoles that are rf + krc apart from the receiver.
Randomized Distributed Configuration Management of Wireless Networks: Multi-layer Markov Random Fields and Near-Optimality
This is further aided by the space constraints of such intra-layer activity, where the optical activity of the firstbound unit (the symmetry-breaking choice) would set the preferences for those of the subsequently selected ones.
Magnetism, FeS colloids, and Origins of Life
This model exploits the fact that the superdense galaxies mentioned in the Introduction are observed at about the epoch at which QSOs are most active; feedback from the AGN activity at z ∼ 2 or 3 is assumed to expel gas from the central regions.
Evolution in the structural properties of early-type Brightest Cluster Galaxies at small lookback time and dependence on the environment
In this table, si ’s are the inactive sources, sa ’s are the active sources, Ai is the column of A corresponding to the inactive si and Aa is the column of A corresponding to the active sa .
A Unified Approach to Sparse Signal Processing
Better characterizing stellar activity and its radiative signatures may be essential for isolating a numerous sample of planets circling young, magnetically-active stars, and for confirming the many exoplanet candidates expected from Kepler.
Temporal Variability of Stars and Stellar Systems