1
: assisting or intended to assist memory
To distinguish "principal" from "principle" use the mnemonic aid "the principal is your pal."
also : of or relating to mnemonics
2
: of or relating to memory
mnemonic skill

mnemonic

2 of 2

noun

: a mnemonic device or code

Did you know?

Need a mnemonic device to remember how to spell mnemonic? Although the word’s pronunciation begins with an n sound, the spelling begins with an m, as in memory. There are very few English words that start this way (mnestic and mnioid are two others), and as with similar Latin and Greek borrowings such as pneumonia, we retained the double initial consonant but not the pronunciation. In addition to its adjectival use, mnemonic is also a noun used to refer to a mnemonic device, such as the famous—or infamous—spelling dictum “I before E, except after C,” which isn't consistently helpful (just ask your neighbor to weigh in on it).

Examples of mnemonic in a Sentence

Noun HOMES is used as a mnemonic for the names of the Great Lakes: Huron, Ontario, Michigan, Erie, and Superior.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
To spot signs, there's a mnemonic device known as FAST. Allison Aubrey, NPR, 17 Dec. 2025 This week, Apple launched a new bit of logo animation with a mnemonic composed by Finneas. Nicholas Quah, Vulture, 6 Nov. 2025
Noun
Bang-bang-bang-bang went the musical mnemonic at 10 to the hour, every hour. Dave Holmes, Los Angeles Times, 10 May 2023 This week, Apple launched a new bit of logo animation with a mnemonic composed by Finneas. Nicholas Quah, Vulture, 6 Nov. 2025 See All Example Sentences for mnemonic

Word History

Etymology

Adjective and Noun

Greek mnēmonikos, from mnēmōn mindful, from mimnēskesthai to remember — more at mind

First Known Use

Adjective

1672, in the meaning defined at sense 1

Noun

1842, in the meaning defined above

Time Traveler
The first known use of mnemonic was in 1672

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Cite this Entry

“Mnemonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mnemonic. Accessed 7 Jul. 2026.

Kids Definition

mnemonic

adjective
mne·​mon·​ic
ni-ˈmän-ik
: assisting or intended to assist memory

Medical Definition

mnemonic

1 of 2 adjective
1
: assisting or intended to assist memory
also : of or relating to mnemonics
2
: of or relating to memory

mnemonic

2 of 2 noun
: a mnemonic device or code

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