agenda

UK: /əˈdʒɛndə/ US: /əˈdʒɛndə/ ,(ə jen′də)

WordReference Random House Learner's Dictionary of American English © 2025

a•gen•da /əˈdʒɛndə/   n. [countable] , pl. -das or -da. 

1. a list, plan, outline of things to be done or voted upon, etc.:
   Make up an agenda for the meeting.

Usage

Originally[agenda] was the plural of a now older[agendum] , but today it is thought of as a singular noun.See -ag-.

WordReference Random House Unabridged Dictionary of American English © 2025

a•gen•da  (ə jen′də), n., [formally a pl. of] agendum, but usually used as a sing. with pl. -das or -da. 

1. a list, plan, outline, or the like, of things to be done, matters to be acted or voted upon, etc.:
   The chairman says we have a lengthy agenda this afternoon.

• Latin, plural of agendum that which is to be done, gerund, gerundive of agere to do; the plural origin, originally carried a collective sense denoting the various items to be transacted
• 1745–55

a•gen′da•less, adj. 
Usage

Agenda, "things to be done,'' is the plural of the Latin gerund agendum and is used today in the sense "a plan or list of matters to be acted upon.'' In that sense it is treated as a singular noun; its plural is usually agendas: The agenda is ready for distribution. The agendas of last year's meetings are printed in the official minutes. The singular agendum, meaning "an item on an agenda,'' is rare.

Collins Concise English Dictionary © HarperCollins Publishers::

agenda / əˈdʒɛndə/ noun

1. Also called: agendum (functioning as singular) a schedule or list of items to be attended to
2. Also called: agendas, agendums (functioning as plural) matters to be attended to, as at a meeting of a committee

Etymology: 17th Century: Latin, literally: things to be done, from agere to do