principals

(noun) the original amount of a debt on which interest is calculated. Synonyms: principal.

(noun) the educator who has executive authority for a school. Synonyms: principal, school principal, head teacher, head. Example: "She sent unruly pupils to see the principal."

(noun) an actor who plays a principal role. Synonyms: star, principal, lead.

(noun) capital as contrasted with the income derived from it. Synonyms: principal, corpus, principal sum.

(noun) (criminal law) any person involved in a criminal offense, regardless of whether the person profits from such involvement. Synonyms: principal.

(noun) the major party to a financial transaction at a stock exchange; buys and sells for his own account. Synonyms: principal, dealer.