CIA cryptonym

CIA cryptonyms are code names or code words used by the U.S. Central Intelligence Agency (CIA) to refer to projects, operations, persons, agencies, etc.
Format of cryptonyms.
CIA cryptonyms sometimes contain a two character prefix called a digraph, which designates a geographical or functional area. Certain digraphs were changed over time; for example, the digraph for the Soviet Union changed at least twice.
The rest is either an arbitrary dictionary word, or occasionally the digraph and the cryptonym combine to form a dictionary word (e.g., AEROPLANE) or can be read out as a simple phrase (e.g., WIBOTHER, read as "Why bother!"). Cryptonyms are sometimes written with a slash after the digraph, e.g., ZR/RIFLE, and sometimes in one sequence, e.g., ZRRIFLE. The latter format is the more common style in CIA documents.
Examples from publications by former CIA personnel show that the terms "code name" and "cryptonym" can refer to the names of operations as well as to individual persons. TRIGON, for example, was the code name for Aleksandr Ogorodnik, a member of the Ministry of Foreign Affairs in the former Soviet Union, whom the CIA developed as a spy; HERO was the code name for Col. Oleg Penkovsky, who supplied data on the nuclear readiness of the Soviet Union during the Cuban Missile Crisis of 1962. According to former CIA Director Richard M. Helms: "The code names for most Agency operations are picked in sequence from a sterile list, with care taken not to use any word that might give a clue to the activity it covers. On some large projects, code names are occasionally specially chosen—GOLD, SILVER, PBSUCCESS, CORONA. When Robert F. Kennedy requested a code name for the government-wide plan that Richard Goodwin was drafting, an exception was made. Goodwin was on the White House staff, and the plan concerned Cuba. Occasionally the special code names come close to the nerve, as did MONGOOSE." A secret joint program between the Mexico City CIA station and the Mexican secret police to wiretap the Soviet and Cuban embassies was code-named ENVOY.
Some cryptonyms relate to more than one subject, e.g., a group of people. In this case, the basic cryptonym, e.g., LICOZY, will designate the whole group, while each group member is designated by a sequence number, e.g., LICOZY/3, which can also be written LICOZY-3, or just L-3.
Digraphs.
Unidentified digraphs.
DT, ER, FJ, HB, HO, HT, JU, KM, KO, QK, SC, SE, SG, WO, WS, ZI