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prince regent
prince royal
Prince Rupert
prince’s-feather
prince’s pine
princeling
princely
princess
princess-line
princess royal
princess tree
Princeton
principal
principal axis
principal boy
principal diagonal
principal parts
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principle

prin·ci·ple [ prínssəp'l ] (plural prin·ci·ples)


noun 
Definition:
 
1. basic assumption: an important underlying law or assumption required in a system of thought

2. ethical standard: a standard of moral or ethical decision-making
I buy recyclable products as a matter of principle.

3. way of working: the basic way in which something works

4. source: the primary source of something

5. chemistry characteristic ingredient: an ingredient of a substance that gives the substance a special quality

[14th century. < Anglo-Norman, alteration of French principe< Latin principium< princip- "somebody who takes first place"]

prin·ci·pled adjective

in principle in theory or in the essentials

on principle because of a particular ethical standard that somebody believes in


Word Usage

See principal.

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