English Wikipedia has an article on: hospitalman Wikipedia (abbreviation): HN hospital + -man hospitalman (plural hospitalmen) (military, US, nautical)...
(military, US, nautical) A member of a hospital corps, typically an enlisted navy sailor, often working at military hospitals. HN corpsman hospitalman...
HND (alpha-3) HN (plural HNs) (military, US, nautical) Abbreviation of hospitalman. HM HN N.H., NH HN(ハンドルネーム) • (handorunēmu) Abbreviation of ハンドルネーム...