Postulate - Word Of The Day For IELTS Speaking And Writing

Using high-level academic verbs in IELTS Speaking and Writing can make your responses sound more analytical, precise, and sophisticated. The verb “Postulate” is especially useful when explaining theories, assumptions, or possible explanations in a formal way. This blog explains its meaning, usage, examples, and exercises to help you use it naturally in IELTS.

Meaning of “Postulate”

Definition:

To suggest, propose, or assume that something might be true, especially as a basis for reasoning, argument, or scientific discussion.

Example Explanation:

When you postulate something, you put forward an idea or theory that may explain an event or phenomenon. It is commonly used in academic writing, scientific discussions, and formal analytical tasks—making it an excellent verb for IELTS.

Origin / History

The word postulate comes from Latin postulare, meaning “to request” or “to demand.” Over time, it evolved into a formal verb used in philosophy, mathematics, and scientific research to present theories or assumptions. Today, it is frequently used in academic essays, research reports, and high-level writing, including IELTS Writing Task 2.

Examples of “Postulate”

• Scientists postulate that global warming is accelerating due to human activities.
• Many historians postulate alternative explanations for ancient cultural changes.
• Psychologists often postulate theories based on observed patterns.
• Economists postulate that inflation may rise if interest rates drop further.

Usage of “Postulate” in IELTS Speaking

Here are some natural examples:

• “Many experts postulate that rising stress levels are linked to longer working hours.”
• “Researchers postulate various reasons for declining wildlife populations.”
• “Some people postulate that technology addiction affects concentration during exams.”

Pro Tip: Use “postulate” in Speaking Part 3 when discussing theories, causes, or predictions. It instantly elevates your vocabulary and shows strong lexical range.

Sample IELTS Speaking Answer Using “Postulate”

IELTS Speaking Part 2 – Describe a Scientific Idea You Find Interesting

“One scientific concept I find fascinating is the idea of parallel universes. Many physicists postulate that multiple universes may exist alongside our own, each with different versions of reality. Although it’s still theoretical, the idea encourages people to think beyond what is visible. I find this theory inspiring because it challenges our understanding of the world.”

Exercises

Exercise 1: Choose the Correct Meaning

Select the correct meaning of “postulate” in each sentence:

1. The researchers postulated a new explanation for the disease.
   a) Rejected the idea
   b) Proposed a theory
   c) Ignored the findings
2. Scientists postulate that the universe is constantly expanding.
   a) Doubt
   b) Prove
   c) Suggest
3. The theory was postulated over a century ago.
   a) Written casually
   b) Suggested
   c) Opposed
4. Some experts postulate alternative reasons for climate change.
   a) Imagine without evidence
   b) Propose
   c) Remove
5. Economists postulate that rising demand will affect prices.
   a) Assume
   b) Destroy
   c) Measure

Exercise 2: Complete the Sentences

Fill in the blanks using: processed, reoccur, postulated, evidence, constitutional, issuing, unidentifiable, sector, derives, assumptions

1. It has been further _______________ that pouchitis represents a recurrence of ulcerative colitis.
2. The body of the victim was so badly burned that it was _______________.
3. The union is _______________ notices regarding a potential strike.
4. Without proper safety measures, the issue could easily _______________.
5. Tourism has been the fastest-growing _______________ of the economy.
6. The president resigned, causing a _______________ crisis.
7. A large percentage of the population _______________ their income from agriculture.
8. There is strong _______________ linking diet to lower cancer risk.
9. The data can be _______________ by the computer in seconds.
10. We shouldn’t make any _______________ before consulting everyone involved.

Answer Key

Exercise 1:

1. b
2. c
3. b
4. b
5. a

Exercise 2:

1. postulated
2. unidentifiable
3. issuing
4. reoccur
5. sector
6. constitutional
7. derives
8. evidence
9. processed
10. assumptions

Mastering academic verbs like “postulate” can greatly enhance your Lexical Resource score in IELTS. Use it to introduce theories, assumptions, or explanations in a clear and formal way. Regular practice with sentences, examples, and exercises will help you use it confidently on exam day.

Useful Links:

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