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memorandum

[ mem-uh-ran-duhm ]
/ ˌmɛm əˈræn dəm /
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See synonyms for: memorandum / memoranda / memorandums on Thesaurus.com

noun, plural mem·o·ran·dums, mem·o·ran·da [mem-uh-ran-duh]. /ˌmɛm əˈræn də/.

a short note designating something to be remembered, especially something to be done or acted upon in the future; reminder.
a record or written statement of something.
an informal message, especially one sent between two or more employees of the same company, concerning company business: an interoffice memorandum.
Law. a writing, usually informal, containing the terms of a transaction.
Diplomacy. a summary of the state of an issue, the reasons for a decision agreed on, etc.
a document transferring title to goods but authorizing the return of the goods to the seller at the option of the buyer.

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Origin of memorandum

1400–50; late Middle English <Latin: something to be noted, noun use of neuter of memorandus, gerundive of memorāre to mention, tell
pre·mem·o·ran·dum, noun, plural pre·mem·o·ran·dums, pre·mem·o·ran·da.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for memorandum

memorandum
/ (ˌmɛməˈrændəm) /

noun plural -dums or -da (-də)

a written statement, record, or communication such as within an office
a note of things to be remembered
an informal diplomatic communication, often unsigned: often summarizing the point of view of a government
law a short written summary of the terms of a transaction
Often (esp for senses 1, 2) shortened to: memo
C15: from Latin: (something) to be remembered
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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