cipher

A numeric character.

Any text character.

In ſucceeding times this vnderſtanding wiſedome began to be written in Ciphers, and Characters, and letters bearing the forme of beaſtes, birds, and other creatures; […]

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

a painter's cipher

an engraver's cipher

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.

He was very early engaged in great ſecrets: For his fatherr, apprehending of what fatal conſequence it would have been to the King’s affairs if his correſpondence had been diſcovered by unfaithful Secretaries, engaged him when very young to write all his letters to England in cypher; ſo that he was generally half the day writing in cypher, or decyphering, and was ſo diſcrect, as well as faithful, that nothing was ever diſcovered by him.

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

a public-key cipher

To calculate.

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

For the mischief that one blockhead, that every blockhead does, in a world so feracious, teeming with endless results as ours, no ciphering will sum up.

To write in code or cipher.

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

To decipher.

Yea the illiterate that know not how To cipher what is writ in learned bookes, VVill cote my lothſome treſpaſſe in my lookes.