act
LatinVariants
Related Roots
About This Root
From Latin agere (to do, drive, lead) and its past participle actum. One of the most common roots in English, powering words from performance (act, actor, action) to involvement (interact, active, activate). Prefixes shape the action's direction: en- makes something happen (enact), hyper- intensifies it (hyperactive).
Associated Words
act
To do something; Something done, a deed
acting
The art of performing roles; temporarily filling another's position
action
To act on a request etc, in order to put it into effect; Something done so as to accomplish a purpose
actions
Things done to accomplish a purpose; deeds or behaviors
activate
To start or enable a device or process
activation
The process of making something active or operational
activator
Something or someone that activates a process or reaction
active
Energetic and engaged in activity; currently operating
actively
In an energetic and engaged manner
activist
A person who campaigns for political or social change
activities
Things done for work, pleasure, or a specific purpose
activity
The state or quality of being active; activeness
actor
A person who performs in plays or films; someone who takes action
actress
A woman who performs in plays or films
actually
(modal) In act or in fact; really; in truth; positively
actuate
To put into motion; to motivate someone to act
adjudicator
A person who makes official judgments or settles disputes
agencies
Organizations or government departments that provide services or act on behalf of others
agency
The capacity, condition, or state of acting or of exerting power
agenda
A list of items to be discussed or a plan of things to do
agent
One who exerts power, or has the power to act
agility
The ability to move or think quickly and easily
agitate
To disturb or upset someone; to shake; to campaign for a cause
agitated
Feeling anxious or upset; moving in a disturbed manner
counteract
To reduce or neutralize the effect of something by acting against it
counteraction
An action that opposes or neutralizes another
deactivate
To make something inactive or no longer effective
enact
To pass into law; to perform or act out
enactment
The passing of a law; a piece of enacted legislation
exact
Perfectly accurate in every detail; to demand something forcibly
exacting
Making great demands; requiring great care or precision
exactitude
The quality of being precise and accurate
exactly
precisely; used to express agreement
exiguous
Very small in amount; scanty or meager
fast-acting
Taking effect quickly
hyperactive
Abnormally or excessively active
hyperactivity
Excessive and uncontrollable restlessness or movement; 多动症,活动过度
inactivate
To make something inactive or unable to function
inactive
Not active or not functioning
inactivity
The state of being inactive; idleness
injudicious
Showing poor judgement; unwise or ill-considered
interact
To communicate or act together; to have an effect on each other
interaction
Mutual action or exchange between people or things
interactive
Allowing two-way communication or response; involving active participation
interactively
In a mutually interactive manner
judiciously
With good sense and careful judgment
long-acting
Producing effects over a long period of time
practice
repeated exercise to improve a skill; the doing of something
propagate
To spread ideas widely; to reproduce or multiply
propagation
The spreading of something; reproduction of organisms; movement of a wave
radioactive
Emitting ionizing radiation from unstable atomic nuclei
react
To respond to something; to undergo a chemical reaction
reactant
A substance consumed in a chemical reaction
reaction
A response to an event or stimulus; a chemical transformation of substances
reactionary
Strongly opposing change; a person who favors returning to the past
reactive
Responding to stimuli; readily undergoing reactions; 有反应的,被动应对的
reactor
A nuclear or chemical reaction device
retroactive
Taking effect from a date in the past; applying to prior events or conditions
satisfactorily
In a way that meets requirements adequately
short-acting
Having a medical effect that lasts only a short time; 短效的
slow-acting
Taking effect gradually rather than immediately
transact
To carry out or conduct business or dealings
transaction
A business deal or exchange; the act of conducting business
transactor
A person who conducts a business transaction