cypher

A numeric character.

Any text character.

A combination or interweaving of letters, as the initials of a name; a device; a monogram.

“a painter's cipher, an engraver's cipher, etc.”

A method of transforming a text in order to conceal its meaning.

“The message was written in a simple cipher. Anyone could figure it out.”

A cryptographic system using an algorithm that converts letters or sequences of bits into ciphertext.

Ciphertext; a message concealed via a cipher.

“The message is clearly a cipher, but I can't figure it out.”

A grouping of three digits in a number, especially when delimited by commas or periods:

“The probability is 1 in 1,000,000,000,000,000 — a number having five ciphers of zeros.”

A fault in an organ valve which causes a pipe to sound continuously without the key having been pressed.

A hip-hop jam session.

The path (usually circular) shared cannabis takes through a group, an occasion of cannabis smoking.

Someone or something of no importance.

Zero.

To calculate.

“I never learned much more than how to read and cipher.”

To write in code or cipher.

Of an organ pipe: to sound independent of the organ.

To decipher.