ple·​num | \ ˈple-nəm How to pronounce plenum (audio) , ˈplē- How to pronounce plenum (audio) \

Definition of plenum

1a : a space or all space every part of which is full of matter
b : an air-filled space in a structure especially : one that receives air from a blower for distribution (as in a ventilation system)
2 : a general assembly of all members especially of a legislative body
3 : the quality or state of being full

Examples of plenum in a Sentence

Recent Examples on the Web In 1922, Gramsci and Bordiga traveled to Moscow to attend a plenum of the Communist International. Thomas Meaney, The New Republic, 30 Mar. 2022 The party plenum report made general references to the ongoing military growth without giving details about new weapons development or space explorations. Washington Post, 1 Jan. 2022 And the historic resolution adopted at the party's plenum this week has anointed him with the legitimacy as the only leader supposedly capable of steering China to achieve that ambition. Nectar Gan And Steve George, CNN, 12 Nov. 2021 This was perhaps in reference to the Communist Party’s sixth plenum which coincided with the second week of COP26 (and resulted in a historic consolidation of power for Xi). Aurora Almendral, Quartz, 15 Nov. 2021 In this week’s sixth plenum, the Central Committee made a similarly audacious decision to adopt a resolution aimed at rewriting Chinese history. Grady Mcgregor, Fortune, 12 Nov. 2021 The resolution was passed during the sixth plenum of the CCP's 19th Central Committee, a four-day meeting behind closed doors in Beijing which brings together the country's top leaders. Yong Xiong And Pauline Lockwood, CNN, 11 Nov. 2021 Ahead of this week’s plenum, Chinese state media propaganda extolling Xi’s virtues went into overdrive. Christian Shepherd,, 11 Nov. 2021 In the argot of Communist politics, the session that began on November 8th is the sixth plenum of the Nineteenth Central Committee. Evan Osnos, The New Yorker, 10 Nov. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'plenum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of plenum

1678, in the meaning defined at sense 1a

History and Etymology for plenum

New Latin, from Latin, neuter of plenus

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Dictionary Entries Near plenum

Plenty, Bay of


plenum ventilation

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Last Updated

7 Apr 2022

Cite this Entry

“Plenum.” Dictionary, Merriam-Webster, Accessed 22 May. 2022.

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