Understand why "theory" is correct and "thoery" is a typo.
Incorrect spelling - "Thoery" is a misspelling with swapped letters.
"thoery" is a common misspelling of "theory". Always use "theory" when referring to the correct word.
Correct spelling - The proper way to spell this word.
"Theory" is a system of ideas explaining something.
"theory": "Theory" is a system of ideas explaining something.
This word is commonly used in everyday conversation and writing.
"Correct:" Einstein's theory changed physics.
"Correct:" She explained the theory clearly.
"Correct:" The theory was proven by experiments.
"Correct:" They studied the theory in class.
"Incorrect:" Einstein's thoery changed physics.
"Incorrect:" She explained the thoery.
"Incorrect:" The thoery was proven.
"Incorrect:" They studied thoery in class.
A: Theory.
A: A system of ideas explaining something.
A: No, it's incorrect.
A: Yes, with new evidence.
A: Darwin proposed the theory of evolution.
"Theory is the right word when discussing explanations, ideas, or scientific principles. Using 'thoery' is a simple typo that can make your writing look careless. Always ensure the letters are in the correct order."