Which rank is represented by the abbreviation YN?

The abbreviation YN stands for Yeoman, which is a rank in the U.S. Coast Guard. Yeomen are responsible for a variety of administrative tasks, including maintaining personnel records, managing correspondence, and ensuring that the necessary documents are properly filed. They play a crucial role in the daily operations and administration of units within the Coast Guard.

While other options may seem plausible, they are not recognized titles or ranks within the U.S. Coast Guard context. For example, "Young Navigator" and "Yearly Nominee" do not correspond to any established rank or title, and "Yard Number" refers to a numeric designation rather than a personnel rank. Thus, understanding the duties and responsibilities attributed to a Yeoman provides further context for why YN accurately reflects that specific service role.