act
noun
anything done, being done, or to be done; deed; performance.
is acting
-
present progressiveof act (3rd person singular).present progressive
Used to describe an ongoing action or state that is currently taking place in the immediate present.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
According to the researchers, the effects of glucosamine may depend heavily on the biological environment in which it is acting.
From Science Daily ● Sep. 27, 2026
He was responding to explosive comments from another researcher, Jacob Coxon, who worked at OpenAI and Anthropic but said neither company is acting responsibly as they sprint to self-improving superintelligence and risk our very existence.
From The Wall Street Journal ● Sep. 12, 2026
“Neither company is acting responsibly,” he wrote on X yesterday.
From Slate ● Sep. 9, 2026
"Neither company is acting responsibly. They are racing straight to self-improving superintelligence and gambling with our lives," Coxon said on Tuesday.
From Barron's ● Sep. 9, 2026
“She is acting crazy. Who knows what could happen to her?”
From "Where the Mountain Meets the Moon" by Grace Lin
