decipher
Americanverb (used with object)
-
to make out the meaning of (poor or partially obliterated writing, etc.).
to decipher a hastily scribbled note.
-
to discover the meaning of (anything obscure or difficult to trace or understand).
to decipher hieroglyphics.
- Synonyms:
- explain, unravel, solve, comprehend
-
to interpret by the use of a key, as something written in cipher.
to decipher a secret message.
-
Obsolete. to depict; portray.
verb
-
to determine the meaning of (something obscure or illegible)
-
to convert from code into plain text; decode
Other Word Forms
Etymology
Origin of decipher
First recorded in 1520–30; translation of Middle French déchiffrer; equivalent to de- + cipher
Explanation
Decipher means translate from code, or more generally, figure out. If you can’t decipher your teacher's writing, it means you can't read it. You might feel like you're being asked to decipher a code. During World War II, the Nazis used a machine called the Enigma to encode secret messages. An operator would type the message with a keyboard, which would activate a set of rotors, giving each letter a different value. The code was difficult for the Allies to crack, but eventually the code was deciphered by the British, hastening the end of the war.
Vocabulary lists containing decipher
English Words Derived from Arabic
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
The City of Ember
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
"Poetry"
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Trading and collecting cards, an industry valued at $14.9 billion in 2024, is estimated to reach $52.1 billion within the next decade, according to Market Decipher report.
From Los Angeles Times • Dec. 26, 2025
Dr Rebecca Anthony, a research associate at Cardiff University's public health body Decipher said the findings arose while studying responses to the 2019 Student Health and Wellbeing Survey.
From BBC • Apr. 8, 2023
"He really was very much in control the whole time," Burgess, author of the forthcoming book "A Killer by Design: Murders, Mindhunters, and My Quest to Decipher the Criminal," told Fox News.
From Fox News • Oct. 15, 2021
According to a report published on Dec. 31 by Duo Security’s newsletter Decipher, the shutdown could affect more than just the government’s own online security posture.
From Slate • Jan. 10, 2019
Decipher a bunch of notes scribbled on the board probably five minutes before class started, then copy them down in your notebook.
From "Thirteen Reasons Why" by Jay Asher
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
