machine - any mechanical or electrical device that transmits or modifies energy to perform or assist in the performance of human tasks

sub-assembly - a unit assembled separately but designed to fit with other units in a manufactured product

weldment - an assembly of parts welded together

construction, building - the act of constructing or building something; "during the construction we had to take a detour"; "his hobby was the building of boats"

facility, installation - a building or place that provides a particular service or is used for a particular industry; "the assembly plant is an enormous facility"

assemblage, gathering - a group of persons together in one place

law-makers, legislative assembly, legislature, general assembly - persons who make or amend or repeal laws

Areopagus - the highest governmental assembly in ancient Athens (later a judicial court)

States General - assembly of the estates of an entire country especially the sovereign body of the Dutch republic from 16th to 18th centuries

chapter - an ecclesiastical assembly of the monks in a monastery or even of the canons of a church

General Assembly - the supreme deliberative assembly of the United Nations

council - (Christianity) an assembly or theologians and bishops and other representative of different churches or dioceses that is convened to regulate matters of discipline or doctrine

chamber - a deliberative or legislative or administrative or judicial assembly; "the upper chamber is the senate"

Bench - the magistrate or judge or judges sitting in court in judicial capacity to compose the court collectively

court, judicature, tribunal - an assembly (including one or more judges) to conduct judicial business

coven - an assembly of witches; usually 13 witches

sabbat, witches' Sabbath - a midnight meeting of witches to practice witchcraft and sorcery; in the Middle Ages it was supposed to be a demonic orgy

group action - action taken by a group of people

mobilisation, mobilization - act of marshaling and organizing and making ready for use or action; "mobilization of the country's economic resources"

calling together, convocation - the act of convoking

coming together, meeting - the social act of assembling for some common purpose; "his meeting with the salesmen was the high point of his day"

congregating, congregation - the act of congregating

convening, convention - the act of convening

concentration - bringing together military forces