Principal

Haupt

(primary, main)

hauptsächlich

(primary, main)

wesentlich

(primary, main)

Geschäftsherr

(legal: one on behalf of whom an agent or gestor acts)

Haupttäter m or simply Täter

(legal: primary participant in a crime)

Prinzipal

(legal: one on behalf of whom an agent or gestor acts)

Rektor

(chief administrator of a school)

Rektorin

(chief administrator of a school)

Schuldirektor

(chief administrator of a school)

Schuldirektorin

(chief administrator of a school)

Schulleiter

(chief administrator of a school)

Schulleiterin

(chief administrator of a school)

Schulvorsteher

(chief administrator of a school)

Schulvorsteherin

(chief administrator of a school)

Vollmachtgeber

(legal: one on behalf of whom an agent or gestor acts)