Did you possibly mean caretaker?
- n. A military communications specialist using codes based on an obscure language.
- n. a secret agent who was one of the Navajos who devised and used a code based on their native language; the code was unbroken by the Japanese during World War II
- code + talker (Wiktionary)
“Though the smoking gun cassette has been stolen from him in a mugging, he reveals that he's had codetalker Albert Hosteen and his buddies memorize its contents.”
“GRADE: 7WTMWBBTTT, WOATS: About the same "Windtalkers" (Release date: 11/9, MGM) SYNOPSIS: In the Pacific theater of World War II, a soldier (Nicholas Cage) is charged with protecting a Navajo codetalker -- and killing him if he falls into enemy hands.”
Looking for tweets for codetalker.