plenum
noun
ple·num ˈple-nəm 
ˈplē-
ˈplē- 1
a
: 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
Example Sentences
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, BostonGlobe.com, 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
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, BostonGlobe.com, 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 Word History
Etymology
borrowed from Latin plēnum, noun derivative from neuter of plēnus "full"; (sense 1a) after its use in the Lucullus book of Cicero's Academica to denote a space completely filled with matter (distinguished from ināne or vacuum "empty space"); (sense 2) apparently first from its use in Sweden in the eighteenth century to refer to a meeting of all members of the Riksdag — more at full entry 1
First Known Use
1678, in the meaning defined at sense 1a