1. (

• principal ,

) the original amount of a debt on which interest is calculated ;

2. (

• principal ,
• school_principal ,
• head_teacher ,
• head ,

) the educator who has executive authority for a school; "she sent unruly pupils to see the principal" ;

3. (

• star ,
• principal ,
• lead

) an actor who plays a principal role ;

4. (

• principal ,
• corpus ,
• principal_sum

) capital as contrasted with the income derived from it ;

5. (

• principal ,

) (criminal law) any person involved in a criminal offense, regardless of whether the person profits from such involvement ;

6. (

• principal ,
• dealer ,

) the major party to a financial transaction at a stock exchange; buys and sells for his own account ;

1. (

• chief ,
• main ,
• primary ,
• principal ,
• master

) most important element; "the chief aim of living"; "the main doors were of solid glass"; "the principal rivers of America"; "the principal example"; "policemen were primary targets"; "the master bedroom"; "a master switch" ;