Noun

(en noun)

The act of congregating or collecting together.

A gathering of faithful in a temple, church, synagogue, mosque or other place of worship. It can also refer to the people who are present at a devotional service in the building, particularly in contrast to the pastor, minister, imam, rabbi etc. and/or choir, who may be seated apart from the general congregation or lead the service (notably in responsary form).

A Roman Congregation, a main department of the Vatican administration of the universal church

A corporate body whose members gather for worship, or the members of such a body.

Any large gathering of people

The collective noun for eagles.

The main body of university staff, comprising academics, administrative staff, heads of colleges, etc.

Noun

(en noun)

(countable) The act of uniting or joining two or more things into one.

(uncountable) The state of being united or joined.

(countable) That which is united, or made one; something formed by a combination or coalition of parts or members; a confederation; a consolidated body; a league.

(countable) A trade union; a workers' union.

* , chapter=22

, title= The Mirror and the Lamp , passage=In the autumn there was a row at some cement works about the unskilled labour men. A union had just been started for them and all but a few joined. One of these blacklegs was laid for by a picket and knocked out of time.}}

(countable) A joint or other connection uniting parts of machinery, such as pipes.

(countable, set theory) The set containing all of the elements of two or more sets.

(countable) The act or state of marriage.

(uncountable, archaic, euphemistic) Sexual intercourse.

(countable, computing) A data structure that can store any of various items, but only one at a time.

A large, high-quality pearl.

*, II.3.3:

Nonius the senator hath a purple coat as stiff with jewels as his mind is full of vices; rings on his fingers worth 20,000 sesterces, andan union in his ear worth an hundred pounds' weight of gold […].