Caesar substitution

variants: or less commonly Caesar shift

Definition of Caesar substitution

: the replacement of each letter in a text by the one at a certain constant distance in the alphabet, especially a normal alphabet — compare julius caesar cipher

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 Caesar substitution

1943, in the meaning defined above

Keep scrolling for more

Learn More About Caesar substitution

Time Traveler for Caesar substitution

Time Traveler

The first known use of Caesar substitution was in 1943

See more words from the same year

Dictionary Entries Near Caesar substitution

Caesar salad

Caesar substitution

Caesar weed

See More Nearby Entries 

Statistics for Caesar substitution

Cite this Entry

“Caesar substitution.” Dictionary, Merriam-Webster, Accessed 27 Oct. 2021.

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


Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet pasta spelling help
  • Which is the correct spelling?
Spell It

Can you spell these 10 commonly misspelled words?

Love words? Need even more definitions?

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