Pronunciation: /æks ɒn/əˈpɒn/
noun a word that represents a person, place, thing, or idea
A1 Water acts on plants to help them grow.
A2 The medication acts upon the nervous system to reduce pain.
B1 The enzyme acts on the substrate to catalyze the reaction.
B2 The new policy acts upon employee behavior in a positive way.
C1 The government's decision acts on the economy with far-reaching consequences.
C2 The artist's work acts upon the viewer's emotions in a profound manner.
verb a word that expresses an action or state of being
A1 The sun acts on the plants to help them grow.
A2 The medication acts upon the body to reduce inflammation.
B1 The new government policy acts on improving education standards.
B2 The enzyme acts upon the substrate to catalyze the reaction.
C1 The CEO acts on feedback from customers to improve product quality.
C2 The artist's work acts upon societal norms and challenges perceptions.
adverb a word that modifies a verb, adjective, or other adverb, often providing information about how, when, where, or to what extent
A1 The cat acts on its instincts when hunting for food.
A2 The medication acts upon the nervous system to reduce pain.
B1 The new law acts on improving public safety in the city.
B2 The enzyme acts upon the substrate to catalyze the reaction.
C1 The CEO acts on feedback from customers to improve the company's products.
C2 The artist's work acts upon the viewer in a profound and emotional way.
preposition a word that shows the relationship between a noun (or pronoun) and other words in a sentence
A1 The sun acts on plants by providing them with energy for photosynthesis.
A2 Exercise acts upon the body in various ways, such as improving cardiovascular health.
B1 The medication acts on the nervous system to reduce pain signals.
B2 The new law acts upon all citizens equally, regardless of their social status.
C1 The CEO's decision to cut costs acted on the company's profitability in a positive way.
C2 The artist's work acts upon the viewer's emotions, evoking deep feelings of nostalgia and longing.
formal The enzyme acts upon the substrate to catalyze the reaction.
informal The medication acts on the pain quickly, providing relief.
slang I heard that new energy drink really acts on your energy levels.
figurative Kindness acts on the heart in mysterious ways, healing wounds we didn't even know were there.
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