Word of the Day:

1 : a select group

2 : the number (such as a majority) of officers or members of a body that when duly assembled is legally competent to transact business

The organization's charter states that a quorum of at least seven board members must be present before any voting can take place. 

"The City Council meeting that was supposed to continue from Tuesday night didn't happen after only one member showed up, leaving the council without a quorum." — Garrett Brnger, KSAT.com (San Antonio, Texas), 17 Feb. 2016

More example sentences

In Latin, quorum means "of whom" and is itself the genitive plural of qui, meaning "who." At one time, Latin quorum was used in the wording of the commissions issued to justices of the peace in England. In English, quorum initially referred to the number of justices of the peace who had to be present to constitute a legally sufficient bench. That sense is now rare, but it's not surprising that quorum has come to mean both "a select group" and "the minimum people required in order to conduct business."