What does ciphered mean?
"Ciphered" is the past tense and past participle of "cipher," a verb with two principal meanings: to convert a message into a secret code so that only someone holding the key can read it, and — in an older, largely obsolete sense — to work through arithmetic calculations in figures. In contemporary English the encoding sense dominates, appearing most often in historical, military, and cryptographic writing, as when wartime dispatches were ciphered before being sent by courier. The word carries connotations of secrecy, deliberateness, and old-world craft; it sounds slightly more formal and period-flavored than its everyday modern equivalents "encrypted" and "encoded," which have largely displaced it in technical contexts. Its etymology is surprisingly humble: it descends from the Arabic "ṣifr," meaning "empty" or "zero," the same root that gave European languages both the word "cipher" and the concept of the numeral zero. For readers of spy fiction, history, or cryptography, "ciphered" remains an evocative and precise term.
verb (past participle / simple past of 'cipher')Ciphered is the past tense and past participle of the verb "cipher": to encode a message into a secret form, or (chiefly in older or arithmetic usage) to do arithmetic, especially by hand.
- Converted a message into a secret code or cipher so it cannot be understood without the key.
- (Archaic) Performed arithmetic calculation, especially in figures rather than words.
"The general's orders were ciphered so that no intercepted courier could read them."
"Every telegram between the two capitals was ciphered before transmission."
"In the old ledger, the shopkeeper had laboriously ciphered out the season's profits by hand."
The word traces back to Arabic ṣifr, meaning "empty" or "zero" — the same root that gave us the digit zero and the French "chiffre."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of ciphered
"Cipher" entered English in the 16th century from Old French "cifre," which itself came from Medieval Latin "cifra," ultimately derived from Arabic "ṣifr" ("empty, zero") — the same source as the English word "zero" via Italian "zefiro." Originally referring to the numeral zero or to Arabic numerals generally, the word came to mean any system of secret symbols or characters, hence the verb "to cipher." The spelling variant "cypher" reflects the French-influenced form; related forms include "decipher" and the French "chiffre."
Related word forms
How ciphered is actually used
In modern usage, "encrypted" and "encoded" are far more common than "ciphered" for concealing information; "ciphered" survives mostly in historical, literary, or cryptographic contexts. The arithmetic sense is now archaic. "Cyphered" is an acceptable chiefly-British spelling variant.
Easily confused with ciphered
"Cyphered" is merely a British spelling variant of the same word; both derive from "cipher/cypher," with no difference in meaning.
"Deciphered" means converted from code back into readable language — the reverse operation of what "ciphered" describes.