iron wall;  impregnable fortress;  impregnable;  invulnerable;  unassailable
 head;  chief;  chairman;  governor;  top seat;  first desk (in orchestra)
 adjutant;  aide;  aide-de-camp
 lieutenant general;  vice-admiral
 Franz;  Franc;  Francis;  Frantz
 commodore;  brigadier general
 Home Ministry;  Department of the Interior (US, etc.);  Home Office (UK);  Ministry of Home Affairs (Japan, pre-1947)
 vice-minister;  undersecretary
 security guarantee (e.g. military security, network security, etc.)
 bureau director;  office chief
 Rudolf;  Rudolff;  Rudolfo;  Rudolph
 founder;  originator;  pioneer
 epitaph;  inscription on a tomb
 close friend;  bosom friend;  buddy;  crony;  chum
 indicates direct object of action;  indicates subject of causative expression;  indicates an area traversed;  indicates time (period) over which action takes place;  indicates point of departure or separation of action;  indicates object of desire, like, hate, etc.
 to protect;  to guard;  to defend;  to keep (i.e. a promise);  to abide (by the rules);  to observe
 following one's master into the grave;  committing suicide after one's lord has died
 volume (of book);  reel (of film);  scroll (of books or paintings);  roll (paper, etc.)
 fort;  stronghold;  fortification
 opposite;  opposition;  versus;  vs.;  to (e.g. "winning a game five to three");  equal footing
 at;  in;  at;  when;  by;  with;  and then
 Hellmuth;  Helmut;  Hermuth
 premeditated murder;  deliberate murder;  willful murder;  wilful murder
 at (place, time);  in;  to (direction, state);  toward;  for (purpose);  because of (reason);  for
 failure;  mistake;  blunder
 prefix for forming ordinal numbers