as·​sem·​bly | \ ə-ˈsem-blē How to pronounce assembly (audio) \
plural assemblies

Definition of assembly

1 : a company of persons gathered for deliberation and legislation, worship, or entertainment an assembly of religious leaders
2 capitalized : a legislative body specifically : the lower house of a legislature
3 : a meeting of a student body and usually faculty for administrative, educational, or recreational purposes A school assembly was held in the auditorium.
4a : assemblage sense 1 an assembly of well-wishers
b : assemblage sense 2 a place of public assembly
5 : a signal for troops to assemble or fall in
6a : the fitting together of manufactured parts into a complete machine, structure, or unit of a machine the assembly of an automobile
b : a collection of parts so assembled
7 : the translation of assembly language to machine language by an assembler

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Examples of assembly in a Sentence

The parts are made in this factory and then shipped to another country for assembly. the New York State Assembly an assembly of armed men School assemblies were usually held in the cafeteria.
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Recent Examples on the Web Such firearms don’t have serial numbers, and buying the schematic for the assembly of ghost guns doesn’t require a background check. Sarah Westwood, Washington Examiner, "Guns, taxes, and the border: Biden’s speech awash in whoppers," 30 Apr. 2021 There are plenty who were saying the freedom of assembly of donors is sacred. Tax Notes Staff, Forbes, "The Tax Issues Facing Tax-Exempt Organizations," 27 Apr. 2021 That, at least, should ensure the ongoing assembly and completion of the single SLS now under construction. Jeffrey Kluger, Time, "Watch TIME's Exclusive Footage of NASA's Most Powerful Rocket Ever Under Construction," 22 Apr. 2021 The assembly of the BRC itself represents their desire to not only join dialogues about architecture and city planning but directly participate in the construction and reconstruction of this nation. Kimberly Drew, Curbed, "MoMA’s ‘Reconstructions’ Show Changed My Relationship to Space and Cities," 20 Apr. 2021 Tuska is the assembly of 11 pieces of cast bronze, the heaviest of which is two tons. Michael Casagrande |, al, "This fascinating man in Kenya is the artist behind Alabama’s new 7-ton football icon," 14 Apr. 2021 A few days later, the NASASpaceflight team was already livestreaming the assembly of SpaceX's next prototype — SN15. Tamir Kalifa For Cnn, CNN, "$200,000 streaming rigs and millions of views: inside the cottage industry popping up around SpaceX," 9 Apr. 2021 This assembly of 12 aluminum blocks, each painted a single color with reflective automotive paint, is a recent acquisition, on view for the first time. John Zotos, Dallas News, "‘Nasher Mixtape’ casts the collection’s hits and rarities in a new light," 26 Mar. 2021 Since 2010, experimentalists have been racing to build actual Majorana quasiparticles from an intricate assembly of a superconductor, a nanowire and a magnetic field. Quanta Magazine, "The Near-Magical Mystery of Quasiparticles," 24 Mar. 2021

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

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First Known Use of assembly

14th century, in the meaning defined at sense 1

History and Etymology for assembly

Middle English assemblee, from Anglo-French, from assembler — see assemble

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Time Traveler for assembly

Time Traveler

The first known use of assembly was in the 14th century

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Statistics for assembly

Last Updated

5 May 2021

Cite this Entry

“Assembly.” Dictionary, Merriam-Webster, Accessed 14 May. 2021.

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More Definitions for assembly



English Language Learners Definition of assembly

: the act of connecting together the parts of something (such as a machine) : the act of assembling something
: a group of people who make and change laws for a government or organization
: a group of people who have gathered together


as·​sem·​bly | \ ə-ˈsem-blē How to pronounce assembly (audio) \
plural assemblies

Kids Definition of assembly

1 : a group of people gathered together an assembly of citizens a school assembly
2 capitalized : a group of people who make and change laws for a government or organization
3 : the act of gathering together The right of assembly is protected by the First Amendment to the United States Constitution.
4 : the act of connecting together the parts of This toy requires no assembly.
5 : a collection of parts that make up a complete unit Remove the rear wheel assembly.


plural assemblies

Legal Definition of assembly

1a : a company of persons collected together in one place usually for some common purpose
b capitalized : a legislative body especially that makes up the lower house of a legislature — see also general assembly, legislative assembly
2 : the act of coming together : the condition of being assembled — see also unlawful assembly

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