after-action report

noun
af·​ter-ac·​tion report

Definition of after-action report

: a detailed critical summary or analysis of a past event (such as a military action) made for the purposes of re-assessing decisions and considering possible alternatives for future reference Prior to leaving Saigon for Honolulu, Harkins had requested and received from Vann a special after-action report on the July 20 engagement.— Neil Sheehan, A Bright Shining Lie, 1988 called also after-action review

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

First Known Use of after-action report

1945, in the meaning defined above

Learn More About after-action report

Time Traveler for after-action report

Time Traveler

The first known use of after-action report was in 1945

See more words from the same year

Dictionary Entries Near after-action report

after-acquired evidence

after-action report

after all

See More Nearby Entries 

Statistics for after-action report

Cite this Entry

“After-action report.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/after-action%20report. Accessed 6 Jul. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Odd Habits and Quirks

  • image1926873504
  • Which of the following best describes an easily irritated person?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!