許多人認為 different (不同的) 後面僅能接介系詞 from，不可接 to 或 than。事實上，這個形容詞無論接 from 或接 to，甚至接 than，都是正確的用法。Different 可用來說明兩個人或事物之間的差異，其後通常接 from，但我們亦可使用 different to，尤其是在說話時。例如：
- Our school is very different from theirs. (我們學校跟他們學校有很大的不同) (正)
Our school is very different to theirs. (正) - The incumbent president is so different from the former president. (現任總統迥異於前任總統) (正)
The incumbent president is so different to the former president. (正) - These results are a bit different from the ones we got three days ago. (這些結果和我們三天前得到的結果有點不同) (正)
These results are a bit different to the ones we got three days ago. (正) - My opinion could hardly be more different from hers. (我的觀點正好和她的完全相反) (正)
My opinion could hardly be more different to hers. (正)
在美式英語中，口語也經常使用 different than。例如：
- Amy is completely/entirely different than her elder sister. (艾美跟她姊姊截然不同) (正)
= Amy is completely/entirely different from her elder sister.
= Amy is completely/entirely different to her elder sister.
= Amy and her elder sister are completely/entirely different. - American English is slightly/somewhat/subtly different than British English. (美式英語與英式英語略有差異) (正)
= American English is slightly/somewhat/subtly different from British English.
= American English is slightly/somewhat/subtly different to British English.
= American English and British English are slightly/somewhat/subtly different.
在英式英語中，人們說話時經常將 different than 中的 than 用作連接詞 (甚至也把 from 當連接詞用)，後接子句，但許多人認為這是不正確的。例如：
- My younger brother is significantly/markedly/radically/vastly different than me. (我弟弟跟我大不相同) (正)
My younger brother is significantly/markedly/radically/vastly different than I am. (？) - His attitude to life is different now than before he got married. (他現在的人生觀與婚前有所不同) (？)
His attitude to life is different now from before he got married. (？)