something done (usually as opposed to something said)

the state of being active

a military engagement

a process existing in or produced by nature (rather than by the intent of human beings)

the series of events that form a plot

the trait of being active and energetic and forceful

the operating part that transmits power to a mechanism

a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong

an act by a government body or supranational organization

the most important or interesting work or activity in a specific area or field

institute legal proceedings against; file a suit against

put in effect

a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong

the operating part that transmits power to a mechanism

the case officer designated to perform an act during a clandestine operation (especially in a hostile area)

a New York school of painting characterized by freely created abstractions; the first important school of American painting to develop independently of European styles

prostrate or semi-erect subshrub of tropical America, and Australia; heavily armed with recurved thorns and having sensitive soft grey-green leaflets that fold and droop at night or when touched or cooled

the local voltage change across the cell wall as a nerve impulse is transmitted

the immediate rebroadcast of some action (especially sports action) that has been recorded on videotape

the efficiency with which electromagnetic radiation produces a photochemical reaction plotted as a function of the wavelength of the radiation

affording grounds for legal action