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Definitions

acting

[ak-ting] / ˈæk tɪŋ /
ADJECTIVE
substituting in a role
Synonyms
STRONG
adjutant alternate assistant delegated deputy interim surrogate temporary
WEAK
ad interim pro tem pro tempore provisional
Antonyms
WEAK
permanent
NOUN
entertaining, performing
Synonyms
STRONG
assuming characterization depiction dramatics dramatizing enacting enactment feigning hamming histrionics imitating imitation impersonation improvisation mime mimicry pantomime performance playing portrayal portraying posing posturing pretending pretense putting rendition seeming simulating stagecraft stooging theatre theatricals
WEAK
play acting showing off

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.

Eventually, a permanent settlement of sorts will be established, acting as a base camp for future expeditions deeper into space.

From Salon • Apr. 9, 2026

David Janovsky has worked on federal transparency issues for decades and is acting director of the Constitution Project at the Project on Government Oversight.

From Slate • Apr. 9, 2026

“Today’s D.C. Circuit stay allowing the government to designate Anthropic as a supply chain risk is a resounding victory for military readiness,” said Todd Blanche, the acting attorney general.

From The Wall Street Journal • Apr. 8, 2026

Stock-market investors were acting boldly Wednesday, but that’s in sharp contrast to the early hours of the fragile truce.

From MarketWatch • Apr. 8, 2026

Wars in the past had often been caused by countries seeking more land or natural resources, or acting out of suspicion and fear of their rivals.

From "The War to End All Wars: World War I" by Russell Freedman