Correct spelling

thoroughly

Correct spelling, explanation: thoroughly is a derivative of the adjective thorough, which can be easily noticed thanks to the distinctive -ly suffix. Since the base word is spelled with two -o vowels, the adverb thoroughly also features a double -o letter. Throughly is just an error and the only correct version of this word is thoroughly.

Definition of thoroughly:
adverb, in a way that includes many details
I have to think about it thoroughly before I make a decision.
Was this medicine thoroughly tested before they put it on the market?

Collocations with thoroughly:
Some most commonly used collocations include: thoroughly excited, thoroughly disappointed, and thoroughly educated.


Incorrect spelling

throughly

Incorrect spelling, explanation: this spelling is incorrect because it lacks one -o vowel. Some English users probably want to make it look similar to the word through and that’s the reason why they spell it this way. However, note that this is a mistake and the only correct form is thoroughly, not throughly.

Incorrect spelling

thouroughly

Incorrect spelling

Incorrect spelling

thoroughlly

Incorrect spelling

Incorrect spelling

thoroghly

Incorrect spelling

Incorrect spelling

thoroughely

Incorrect spelling