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Definitions

functioning

[fuhngk-shuh-ning] / ˈfʌŋk ʃə nɪŋ /
ADJECTIVE
active
Synonyms
STRONGEST
functional working
STRONG
going operating operative running
WEAK
operational useful
Antonyms
STRONGEST
idle
NOUN
operation
Synonyms
STRONG
action activity behavior duty operating performance running task working
Antonyms
STRONG
idleness inactivity inertia

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.

And if we engage regularly, it actually affects the size, structure and functioning of those brain regions, which can help with the development of brains in young children.

From Los Angeles Times • Apr. 8, 2026

Pelosi also raised a concern echoed by other San Francisco politicians, that turning Alcatraz back into a functioning prison would mean the loss of an iconic landmark.

From BBC • Apr. 4, 2026

Cashless payment terminals in cafes and shops stopped functioning, and public restrooms were inaccessible because payment couldn’t be processed.

From The Wall Street Journal • Apr. 3, 2026

Morgan analysts say may disrupt the smooth functioning of energy markets, raising the risk of reduced liquidity and bottlenecks in crude flows.

From MarketWatch • Apr. 2, 2026

Bitter often joked to Jam that her father moved like a functioning disaster, clumsy and charming and breaking at least one breakable thing a week.

From "Pet" by Akwaeke Emezi

Vocabulary lists containing functioning

A Tangle of Knots

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