Question

principle principal
principle
prin·ci·ple ˈprin(t)s-pəl
middle english, from middle french principe, from latin principium, \beginning\

1. n. a fundamental law
2. n. a primary source, origin

which sentence uses the underlined word correctly?
○ the principle visited our class lately.
○ our constitution is based on certain principles.
○ our experiment was based on scientific principals.
○ the principals of my parents have always stuck with me.

Explanation:

• "Principle" refers to a fundamental law/rule, while "principal" means a school administrator or a leading figure.
• Option A uses "principle" incorrectly (it should be "principal" for a school official).
• Option C uses "principals" incorrectly (it should be "principles" for scientific rules).
• Option D uses "principals" incorrectly (it should be "principles" for moral/guiding rules).
• Option B correctly uses "principles" to describe the fundamental rules the Constitution is built on.

Answer:

B. Our Constitution is based on certain principles.