theory
gb/θˈiɚi/ us/θˈiɚi/
B1
अंग्रेज़ी
~ 700
अर्थ
0 अर्थ
संज्ञा
B2
entity
1
Explanation supported by evidence
An idea that explains why things happen, based on facts and study.
उपयोग पैटर्न:
a theory about [something]
आम गलती:
Learners sometimes confuse 'theory' with 'hypothesis'. A hypothesis is an idea to be tested; a theory is already supported by evidence.
समानार्थी शब्द
explanation (More general; can be for everyday situations, not just formal or scientific contexts.)
विलोम शब्द
fact (A fact is something known to be true without the need for explanation or hypothesis.)
शब्द-संयोजन
scientific theory
|develop a theory
|theory suggests
|test a theory
|propose a theory
विषय
science
|education
|research
|core_vocabulary
उदाहरण
- Einstein's theory of relativity changed our understanding of space and time.
- The theory explains how galaxies form.
- Her theory is that the missing money was stolen by someone inside the company.
- The researchers developed a new theory to explain the results.
- According to current theory, the universe began with the Big Bang.
सीखने वालों के उदाहरण
- I read about a new theory in science class.
- Her theory is that plants grow faster in sunlight.
- The theory says the earth goes around the sun.
- Scientists have a theory about why animals migrate.
संज्ञा
B2
entity
2
General ideas or principles
An idea or set of rules about how something works or should work.
उपयोग पैटर्न:
theory of [something]
आम गलती:
Learners sometimes use 'in theory' incorrectly to mean 'probably' instead of 'according to the plan or idea'.
समानार्थी शब्द
principle (Refers to a basic truth or rule; may be more fixed than 'theory'.)
विलोम शब्द
practice (Refers to the actual doing of something, as opposed to the ideas about it.)
शब्द-संयोजन
political theory
|economic theory
|management theory
|in theory
विषय
philosophy
|education
|work
|core_vocabulary
उदाहरण
- In theory, this plan should save the company money.
- She studies political theory at university.
- The new economic theory challenges traditional views.
- According to game theory, players act in their own interest.
सीखने वालों के उदाहरण
- In theory, the train should arrive at 8.
- We learned about economic theory in class.
- His theory is that people are happier in small towns.
संज्ञा
B1
entity
3
Unproven belief or guess
A guess or idea that might explain something, but is not certain.
उपयोग पैटर्न:
have a theory that [clause]
आम गलती:
Learners may overuse 'theory' for casual guesses; 'idea' or 'guess' can be more natural in informal speech.
समानार्थी शब्द
speculation (More formal; often suggests guessing without strong evidence.)
विलोम शब्द
certainty (Something known for sure, without doubt.)
शब्द-संयोजन
have a theory
|my theory is that
|conspiracy theory
विषय
daily life
|communication
|core_vocabulary
उदाहरण
- I have a theory that my neighbor is avoiding me.
- Her theory is that the cat goes out at night to hunt.
- There's a popular conspiracy theory about that event.
सीखने वालों के उदाहरण
- I have a theory that it will rain today.
- His theory is that she is tired.
- They talk about a strange conspiracy theory.
व्याकरण
शब्दकोश रूप
theory
IPA
GB/θˈiɚi/
US/θˈiɚi/
शब्दांश और ज़ोर
the - ory (2 शब्दांश)
Stress on 1st syllable (the)
शब्द रूप
Noun
- Base: theory
- Plural: theories, theory
शब्द परिवार
Forms
theories
noun
Core family
theoretical
adjective B2
theoretically
adverb B2
अभिव्यक्तियाँ
conspiracy theory
1/kənspˈɪɹəsi θˈiɚi/
fixed phrase
belief about secret harmful plot
An explanation of an event that says a secret group planned it for a bad reason, usually without good proof.
उदाहरण
- Some people believe the moon landing was a conspiracy theory.
- The internet has made it easier for conspiracy theory videos to reach millions of people.
- The internet has made it easier for conspiracy theories to spread.
- He dismissed the idea that the vaccine is a government plot as a wild conspiracy theory.
- Some conspiracy theory communities moved to new platforms after being banned.
in theory
1/ˈɪn θˈiɚi/
fixed phrase
According to ideas or plans
When something should happen based on ideas or plans, but it might not happen in real life.
उदाहरण
- In theory, this method should work every time.
- In theory, the plan should work perfectly.
- In theory, anyone can apply for the job, but few are qualified.
- In theory, anyone can apply for the job, but in practice it’s very competitive.
in theory
2/ˈɪn θˈiɚi/
fixed phrase
according to theory, not practice
According to ideas or rules of how something should work, not necessarily how it really works.
उदाहरण
- In theory, the new law will reduce traffic, but many people doubt it.
- The plan sounds perfect in theory, but it will be hard to carry out.
- In theory, children learn faster with smaller classes.