принцип

In a sentence

• Той действа според своите принципи.

  He acts according to his principles.

  Here, 'principles' refers to a set of core moral or ethical beliefs that guide one's behavior.

• На принцип работа на този механизъм е натискът върху буталото.

  The principle of operation of this mechanism is the pressure on the piston.

  Here, 'principle' refers to the fundamental functioning or operational foundation of a system or mechanism.

• Това е принципно правило за всички участници.

  This is a principal rule for all participants.

  Here, 'principal' is used to denote a foundational or general rule applying broadly.