1. A list or program of things to be done or considered: "They share with them an agenda beyond the immediate goal of democratization of the electoral process" (Daniel Sneider).
2. A plural of agendum.

[Latin, pl. of agendum, agendum. See agendum.]

USAGE NOTE   It is true that Cicero would have used agendum to refer to a single item of business before the Roman Senate, with agenda as its plural. But in Modern English a phrase such as item on the agenda expresses the sense of agendum, and agenda is used as a singular noun to denote the set or list of such items, as in The agenda for the meeting has not yet been set. If a plural of agenda is required, the form should be agendas: The agendas of both meetings are exceptionally varied.

The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.