plural proxies
1
: the agency, function, or office of a deputy who acts as a substitute for another
2
a
: authority or power to act for another
b
: a document giving such authority
specifically : a power of attorney authorizing a specified person to vote corporate stock
3
: a person authorized to act for another : procurator
proxy adjective

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Proxies and Proxy Servers

Proxy comes from a contracted form of the Middle English word procuracie (meaning “procuration”). A proxy may refer to a person who is authorized to act for another or it may designate the function or authority of serving in another’s stead. In the latter sense, it generally is preceded by the word by (“vote by proxy”).

Proxy has recently taken on meanings in computing, where it is found in such phrases as proxy server, a computer system that facilitates the exchange of data between users on a network.

Examples of proxy in a Sentence

Since I wouldn't be available to vote, I nominated him to act as my proxy. sent a proxy to the meeting to cast his vote for him
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, the cloud provider deployment costs can serve as a good proxy to indicate relatively how much investment will be required to scale on-prem implementations. Francis Sideco, Forbes, 18 Mar. 2025 The younger Assad avoided direct confrontation with Israel but provided its archenemy, Iran, with key supply routes to Tehran’s armed proxy groups, most notably Hezbollah in Lebanon, which fired thousands of rockets at Israel during the Israel-Hamas war. Mostafa Salem, CNN, 14 Mar. 2025 But art to him was more than a proxy for cultural sophistication and a fat bank account. Susan Tallman, The Atlantic, 12 Mar. 2025 Many astronomers wonder if the DMS signature from K2-18b can really be trusted, and even question whether DMS is a reliable proxy for the presence of life to begin with. Perri Thaler, Space.com, 11 Mar. 2025 See All Example Sentences for proxy

Word History

Etymology

Middle English proxi, procucie, contraction of procuracie, from Anglo-French, from Medieval Latin procuratia, alteration of Latin procuratio procuration

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of proxy was in the 15th century

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Cite this Entry

“Proxy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/proxy. Accessed 23 Mar. 2025.

Kids Definition

proxy

noun
plural proxies
1
: authority held by one person to act for another (as in voting)
2
a
: a person holding authority to act for another
b
: a written paper giving a person such authority
proxy adjective

Legal Definition

proxy

noun
plural proxies
1
: the act or practice of a person serving as an authorized agent or substitute for another
used especially in the phrase by proxy
2
a
: authority or power to act for another
b
: a statement or document giving such authorization
specifically : an oral consent or written document (as a power of attorney) given by a stockholder to a specified person or persons to vote corporate stock
3
a
: a person authorized to act or make decisions for another
appointed a health-care proxy
b
: something serving to replace or substitute for another thing
Etymology

Middle English procucie, contraction of procuracie, from Anglo-French, from Medieval Latin procuratia, alteration of Latin procuratio appointment of another as one's agent

More from Merriam-Webster on proxy

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