Answer: principle

AnswerCrossword Clue
PRINCIPLEHigh-level guideline
PRINCIPLEOne plural in monarch's rule (9)
PRINCIPLERule the head of the school declared (9)
PRINCIPLEStandard
principlea guiding rule / to ground (a person) in the principles or elements of a subject
principleingredient (as a chemical) that exhibits or imparts a characteristic quality
principledivine principle god
principleunderlying faculty or endowment such principles of human nature as greed and curiosity
principleprimary source origin
principlea comprehensive and fundamental law, doctrine, or assumption
principlerule or code of conduct