Evidence of confusion between principle and principal can be found even in publications overseen by professional editors. To keep these words straight, remember that principle functions only as a noun, and in its most common uses refers to a basic rule or law, as in
If you are looking for an adjective form of this word, you must use principled, as in
Principal functions as both a noun and an adjective. The noun has various meanings referring to someone with controlling authority
or in a leading position
, but also has meanings relating to finance, law, and architecture. As an adjective, principal typically means "most important," as in
Examples of principle in a Sentence
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'principle.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.