en·​ci·​pher | \ in-ˈsī-fər How to pronounce encipher (audio) , en- \
enciphered; enciphering; enciphers

Definition of encipher

transitive verb

: to convert (a message) into cipher

Other Words from encipher

encipherer \ in-​ˈsī-​fər-​ər How to pronounce encipher (audio) , en \ noun
encipherment \ in-​ˈsī-​fər-​mənt How to pronounce encipher (audio) , en \ noun

Examples of encipher in a Sentence

Recent Examples on the Web To protect sensitive communications traveling along public pathways, the senders enciphered—or encrypted—their words, often using machines that could replace each letter with a new letter. Liza Mundy, Time, 10 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'encipher.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of encipher

1577, in the meaning defined above

Learn More About encipher

Time Traveler for encipher

Time Traveler

The first known use of encipher was in 1577

See more words from the same year

Dictionary Entries Near encipher



enciphering alphabet

See More Nearby Entries 

Statistics for encipher

Cite this Entry

“Encipher.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/encipher. Accessed 19 May. 2022.

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

More from Merriam-Webster on encipher

Thesaurus: All synonyms and antonyms for encipher


Test Your Vocabulary

Great Words for Scrabble

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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