cipher.

Major Eckert has identified the translation of a despatch sent from Canada to Richmond in cipher.

Foreign and Colonial Intelligence 1865

The records of the Department of the Cumberland merely state that this despatch was sent in "cipher."

Forty-Six Years in the Army John M. Schofield

If any thing in this world is settled, it is settled that the negro can learn to read, to write, and to "cipher."

Our Brother in Black: His Freedom and His Future Atticus Greene 1881

C.sar's letters to C. Oppius and C.rnelius Balbus, written in a kind of cipher.

Plutarch's Lives Volume III. 46-120? Plutarch 1839

Pitt is fine in the movie, but by design the character is passive, reticent, and kind of cipher.

The L Magazine - New York City's Local Event and Arts & Culture Guide 2009