The correct spelling of the word depends on where you are in the English-speaking world. In American English, "odor" with no "u" is the preferred spelling. On the other hand, in British English and many other Commonwealth countries, "odour" with a "u" is the preferred spelling. The differences in spellings between American and British English are quite common and can be found in various words.
These variations in spelling can be traced back to historical reasons. British English has maintained some of the spellings from Middle English, while American English has undergone more linguistic changes over time.
It's important to remember that there is no right or wrong spelling in this case; it's merely a matter of regional preference. Both "odor" and "odour" convey the same meaning and can be understood by English speakers worldwide.
As a language learner, it's beneficial to be aware of these spelling differences, especially if you plan to communicate or write in different English-speaking countries. Developing a familiarity with both American and British English spellings can help you navigate and understand the nuances of the language. Keep in mind that consistency within your own writing is key, regardless of whether you choose American or British spelling conventions.
So, whether you prefer to remove that "u" and go with "odor" or include it and go with "odour," you'll be correct as long as you are consistent in your usage.
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