The Navajo language, or Diné bizaad, stands as a testament to the rich cultural heritage of the Navajo people. Unlike many other languages spoken in the United States, Navajo is incredibly complex, featuring tones and intricate grammatical structures that make it exceptionally difficult for non-Navajo speakers to master. This inherent complexity, combined with its relative obscurity to the outside world, made it an ideal candidate for a secret code.
One of the key features that sets Navajo apart is its verb-centered structure. Verbs are highly inflected, meaning they change form significantly to indicate nuances of meaning such as tense, aspect, and mode. This allows for a level of precision and subtlety that is challenging to replicate in languages like English or Japanese, adding another layer of security to its potential use as a code.