Similar words
Kapitän
Hauptmann is specifically a military rank, an army captain; Kapitän is used for a ship's captain or a sports team captain, not the military.
Similar in other languages
French
capitaine
capitaine is the French word for the same thing — both mean "captain."
Portuguese
capitão
capitão is the Portuguese word for the same thing — both mean "captain."
Practice
1 What does Hauptmann mean?
captain
2 Fill the gap: Der ___ führte die Kompanie.
Full sentence: Der Hauptmann führte die Kompanie. (The captain led the company.)
3 Which fingerprint chart matches Hauptmann?
Hauptmann: neutral register, common frequency, general domain, neutral connotation.