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Principal Vs Principle Exercises (A2-B1)

⏱ Time: 07:30 📝 Questions: 15 📊 Level: A2, B1 📚 Type: Vocabulary ⭐ XP: up to +15 (on pass)

Can you use Principal Vs Principle correctly in everyday English? These 15 practice questions for Level A2-B1 go beyond memorisation — they put vocabulary concepts into realistic sentences and situations. Detailed explanations help you understand not just the what, but the why.

⏱ You have 07:30 to answer 15 questions. The timer only starts when you click Begin.

Q1  15
Q1 15

Question 1: What does the word 'principal' mean when talking about a school?

Question 1 options
'Principal' means the head or leader of a school. 'Rule' is the meaning of 'principle', not 'principal'. 'Student' and 'teacher' are other school roles, not the meaning of 'principal'.
Q2 15

Question 2: Honesty is an important ___ that guides how she lives her life.

Question 2 options
'Principle' is correct because it means a basic rule or belief that guides behavior. 'Principal' refers to a person in charge or something most important, not a moral rule.
Q3 15

Question 3: The word 'principle' can be used as an adjective to describe something of great importance.

Question 3 options
False. 'Principle' is always a noun meaning a rule or belief. It is 'principal' that works as an adjective meaning most important, as in 'the principal reason'.
Q4 15

Question 4: Which word is closest in meaning to 'principle'?

Question 4 options
'Rule' is closest in meaning to 'principle', which refers to a basic truth or guideline for behavior. 'Leader' relates to 'principal', while 'money' and 'reason' do not match the meaning of 'principle'.
Q5 15

Question 5: Match each word or phrase to its correct meaning.

Question 5 options
principal (noun)
principle
principal (adjective)
principal (finance)
most important
a basic rule, belief, or truth
the head of a school or organization
the original amount of money borrowed

Select an item on the left, then tap its match on the right.

'Principal' (noun) = school leader; 'Principle' = a basic rule or belief; 'Principal' (adjective) = most important; 'Principal' (finance) = the original amount of money borrowed.
Q6 15

Question 6: Which word naturally goes with 'moral' to describe a strong belief about right and wrong?

Question 6 options
'Moral principle' is a natural and common English collocation meaning a belief about what is right or wrong. 'Moral principal' is incorrect because 'principal' refers to a person or something most important, not a belief.
Q7 15

Question 7: Teacher: 'Who runs this school?' Student: 'The ___ does. She makes all the big decisions.'

Question 7 options
'Principal' is correct here because it refers to the person who leads or runs the school. 'Principle' means a rule or belief, not a person.
Q8 15

Question 8: The ___ reason the company is successful is its excellent customer service.

Question 8 options
'Principal' is correct because as an adjective it means 'most important' or 'main'. 'Principle' is only a noun and cannot be used to describe a reason. 'Primary' and 'principal' are similar, but only 'principal' is the target confusable word being tested.
Q9 15

Question 9: Put the words/chunks in the correct order to make a natural English sentence:

Question 9 options
  • She follows
  • everyone fairly.
  • the principle
  • of treating

Drag items or use arrows to arrange them in the correct order.

The correct order is: 'She follows the principle of treating everyone fairly.' 'Principle' collocates with 'of' to introduce the rule or belief being described.
Q10 15

Question 10: She paid back the ___ of her loan before she paid the interest.

Question 10 options
'Principal' is correct in financial contexts to mean the original amount of money borrowed, not including interest. 'Principle' means a rule or belief and does not fit a financial context.
Q11 15

Question 11: A student is writing a formal letter to the head of a school. Which word should they use to address this person?

Question 11 options
'Principal' is the correct formal title for the head of a school. 'Principle' refers to a rule or belief and is never used as a job title. 'Director' and 'manager' are titles used in other organizations, not typically for schools.
Q12 15

Question 12: Which word correctly completes this sentence? 'She made a ___ decision to never lie to her friends.'

Question 12 options
'Principled' is the adjective form of 'principle', meaning guided by strong moral rules. The other options — 'principle' (noun), 'principally' (adverb), and 'principal' (adjective/noun meaning main or head) — do not fit this slot correctly.
Q13 15

Question 13: 'Principal' can be used as both a noun and an adjective, but 'principle' is only ever used as a noun.

Question 13 options
True. 'Principal' works as a noun (the school principal) and as an adjective (the principal reason). 'Principle' is always a noun and is never used as an adjective.
Q14 15

Question 14: He refused to lie, even when it was difficult, because he is a man of strong ___.

Question 14 options
'Principles' is correct here because the phrase 'a man of principles' means someone who lives by strong moral rules or beliefs. 'Principals' refers to people in authority, not moral values, and does not fit this expression.
Q15 15

Question 15: Read this sentence: 'The principal actor in the film had the most difficult role.' What does 'principal' mean HERE?

Question 15 options
'Principal' here means 'most important' or 'main'. It is used as an adjective to describe which actor had the biggest role. It does not mean a school leader, a financial term, or a rule in this sentence.