memo

noun

ˈme-(ˌ)mō 

plural memos

: a usually brief written message or report : memorandum

Use headlines, bullets, and lists to organize the memo and the proposal.

—Inc. Magazine

When your boss asks you to find a memo you wrote a year ago, it's hard to remember what you named it.

—Susan Kelley

see also:

get the memo

Synonyms of memo

• letter
• epistle

Examples of memo in a Sentence

He sent a memo to the staff.

a long series of memos between the two authors collaborating on the book

Recent Examples on the Web

Following a Wall Street Journal report that a memo was sent to employees Tuesday, a Gates Foundation spokesperson told Fox News Digital the review was first announced in a foundation-wide email last month and was agreed upon by the board and Bill Gates. —Brittany Miller, FOXNews.com, 21 Apr. 2026

The memo also argued that the parents didn’t have standing to sue, and that the courtroom wasn’t a proper place to adjudicate the issue. —Idaho Statesman, 21 Apr. 2026

After narrowing the options, the resource was piloted in classrooms and evaluated, per the district memo. —Molly Morrow, Chicago Tribune, 21 Apr. 2026

OpenAI memo criticizes Anthropic watch now Choose CNBC as your preferred source on Google and never miss a moment from the most trusted name in business news. —Ashley Capoot, CNBC, 20 Apr. 2026

Word History

First Known Use

1705, in the meaning defined above

Phrases Containing memo

• counter-memo
• get the memo

Rhymes for memo

• acknow
• aglow
• ago
• airglow
• aloe
• altho
• although
• ammo
• backflow
• backhoe
• banjo
• barbeau

Kids Definition

memo

noun

ˈmem-ō 

plural memos

: memorandum