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Odor is simply the American spelling of : a smell. It is not a different word and it is not a weaker or stronger kind of smell.
Odor odor is simply就只是 the American spelling of odourodour的美式拼法 a smell也就是氣味。 It它 is not a different word不是另一個字 and it is not a weaker or stronger kind of smell也不是比較弱或比較強的一種氣味。
In careful English it can be any smell, welcome or not — the odor of coffee, the odor of rain, the odor of smoke. In everyday American speech, though, it leans a little toward a smell you notice, and often one you do not love: body odor, a strange odor in the fridge. A nice smell is more often a scent or a fragrance.
In careful English在講究的英文裡 it can be any smell, welcome or not它可以指任何氣味，不管好不好聞 the odor of coffee, the odor of rain, the odor of smoke像咖啡的氣味、雨的氣味、煙的氣味。 In everyday American speech, though不過在美式日常口語裡 it leans a little toward a smell you notice它比較偏向那種你會注意到的氣味 and often one you do not love而且常常是不太喜歡的那種 body odor, a strange odor in the fridge像body odor（體味）、a strange odor in the fridge（冰箱裡的怪味）。 A nice smell好聞的氣味 is more often a scent or a fragrance比較常說是scent或fragrance。
Scientists and safety notices still use it quite : a strong odor of gas. British, Irish, and much Commonwealth English write and mean the same thing.
Scientists and safety notices still use it quite neutrally科學家和安全告示還是很中性地在用這個字 a strong odor of gas像a strong odor of gas（濃烈的瓦斯味）。 British, Irish, and much Commonwealth English英式、愛爾蘭式、還有很多大英國協的英文 write odour寫成odour and mean the same thing意思完全一樣。
In American shops, American science class, and American books you will see odor; in British books, and in many Taiwan exams that follow British spelling, you will see . Choose one house and stay in it for one piece of writing. The meaning does not change when the u comes and goes.
In American shops, American science class, and American books在美國的商店、科學課、書籍裡 you will see odor你會看到odor in British books, and in many Taiwan exams that follow British spelling在英式書籍、以及很多採用英式拼法的台灣考試裡 you will see odour你會看到odour。 Choose one house選定一種拼法 and stay in it for one piece of writing在同一篇文章裡就固定用它。 The meaning does not change意思不會改變 when the u comes and goes不管那個u有沒有出現。
組成From Middle English odour, borrowed from Anglo-Norman odour, from Old French odor, from Latin odor. Swedish odör (“bad smell”) is a cousin, not an English family word.
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
odornoun/ˈəʊdə/
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Any smell, whether fragrant or offensive.
- Now, I still think that for this box of matches to have escaped the wear of time for immemorial years was a strange, and for me, a most fortunate thing. Yet oddly enough I found here a far more unlikely substance, and that was camphor. I found it in a sealed jar, that, by chance, I supposed had been really hermetically sealed. I fancied at first the stuff was paraffin wax, and smashed the jar accordingly. But the odour of camphor was unmistakable.
- Both chemicals are solid oxidizers in granular form and have a chlorine odor. […] Plant 12 also stored super sacks of bromochloro-5,5-dimethylimidazolidine-2,4-dione (BCDMH), which is a granular solid oxidizer with a halogen odor that, in addition to chlorine gas and hydrogen chloride, can also release bromine gas and hydrogen bromide upon decomposition.
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A strong, pervasive quality.
- In different parts of the coast different species of animals are accounted sacred, because they are supposed to be animated by the spirits of the dead. Hence monkeys near Fishtown, snakes at Whydah, and crocodiles near Dix Cove live in the odour of sanctity."
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Esteem.
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archaicSomething which produces a scent; incense, a perfume.
- On the morowe after the ſaboth / erly in the mornynge / they cam vnto the toumbe and brought the odourſ whych they had prepared / and other wemen wyth them.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。