Old principle Synonyms

Old replaced

familiar principle

long-standing principle

established principle

Definitions for Old

(adjective) being of advanced years and especially past middle age
(adjective) dating or surviving from the distant past
(adjective) having been such at some previous time

OP abbreviation

OP is an abbreviation for Old Principle

What does OP stand for?

OP stands for "Old Principle"

Principle replaced

Definitions for Principle

(noun) a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct
(noun) a basic truth or law or assumption
(noun) a rule or standard especially of good behavior