From the UWF Writing Lab’s 101
Grammar Mini-Lessons Series
Mini-Lesson #58
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Noun
◦ Head or chief person
 The principal led the children in the singing of the
alma mater.
◦ A sum of money owed on which interest is owed
 The principal versus the interest on the mortgage
Adjective
◦ Main or most important
 The principal causes of the accident
 The principal reason for my attending this school
is the low cost of classes.
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A moral standard
Rule
Axiom
Basic Truth
A natural law
Value
◦ We uphold the principle that all persons are
created equal.
Her principal reasons for confessing were her
principles of right and wrong.
The principal difficulty in our department is
finding enough employees to do the job well.
The police officer is a principal witness.
Dr. Marin Luther King Jr. fought for the
principle of nonviolence.