ciphering Definition

cipher
cypher
noun

1. A secret code.
2. Something written in code.
3. The key to a code.
4. An interlaced set of initials; a monogram.
5. math., old use
The symbol 0, used to fill blanks in writing numbers, but of no value itself.
6. A person or thing of little importance.
7. Any Arabic numeral.

verb

ciphered, ciphering
1. To write (a message, etc) in code.

Etymology: 14c: from Latin ciphra, from Arabic sifr empty or zero.