as·sem·bly | \ə-ˈsem-blē \
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

Keep scrolling for more

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.
See More

Recent Examples on the Web

The Lacuna is an assembly of sensates that are willing to help the main cluster. Rebecca Farley,, "Sense8 Series Finale Recap: Farewell, International Orgies!," 8 June 2018 The pastor said he was told in early March, however, that the church wouldn’t be to have worship services indoors, or otherwise hold assemblies of any type in the building, until the sprinkler system upgrade. Mike Nolan, Daily Southtown, "Parishioners 'still standing' after legal fight; Markham church celebrates opening," 20 May 2018 Both of these roles—speaker of the assembly and president of the city council—are highly transactional. Gabriel Kahn, Los Angeles Magazine, "Could Straight-Talking City Councilman Herb Wesson Be L.A.’s Next Mayor?," 9 May 2018 Some schools folded it into school programming, creating assemblies or even a week of events to recognize the protest. Emily Bamforth,, "Students push for gun reform during National School Walkout Friday: What's happening in Northeast Ohio?," 19 Apr. 2018 All in all, assembly of the chair took around 20 minutes. James Vincent, The Verge, "Assembling Ikea furniture should be a new benchmark for robot dexterity," 18 Apr. 2018 Katz Yeshiva High School of South Florida, located in Boca Raton, has had a number of activities to show support for the MSD students and staff, including an assembly of students on campus forming a heart with the letters MSD. Marvin Glassman, Jewish Journal, "Palm Beach County Jewish day schools demonstrate support for Stoneman Douglas," 1 Mar. 2018 As Marc Champion reports the mood among the annual assembly of political leaders and generals was unusually sober., "Trump Blames FBI as Mueller Pushes Ahead," 19 Feb. 2018 Pharrell led from the point at Staples Center as a ridiculously busy assembly of mascots, cheerleaders and dancers entertained the crowd. Lars Brandle, Billboard, "N.E.R.D. Teams up with Migos for NBA All-Star Halftime Performance: Watch," 18 Feb. 2018

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.

See More

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

Keep scrolling for more

Learn More about assembly

Statistics for assembly

Last Updated

10 Oct 2018

Look-up Popularity

Time Traveler for assembly

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

See more words from the same century

Keep scrolling for more

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 \
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

Keep scrolling for more

Comments on assembly

What made you want to look up assembly? Please tell us where you read or heard it (including the quote, if possible).


a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!