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- pronunciation:
- thir
i
- features:
- Word Explorer
| part of speech: |
noun |
| inflections: |
theories |
| definition 1: |
a reasonable, widely accepted explanation for why something happens.
After studying plants and animals in South America, Charles Darwin worked out the theory of evolution by natural selection.- similar words:
- assumption, hypothesis, idea
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| definition 2: |
the set of rules that forms the basis of an art or science.
This year in math class we will study set theory and number theory.- similar words:
- laws, philosophy, principles, school
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| definition 3: |
a view or opinion that has not been proved.
The detective has a theory about what happened to the monkey.- antonyms:
- fact
- similar words:
- belief, feeling, guess, intuition, notion, view
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| related words: |
conclusion, doctrine |
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