外国人的英文单词是foreigner。
解释：
foreigner 英[?f?r?n?(r)] 美[?f?:r?n?(r)]
n. 外国人; 外人，陌生人; 外来物，进口货物; （非本土的） 外来动植物;
[例句]They are discouraged from becoming close friends with foreigners.
他们被劝说不要和外国人密切交往。
She is married to a foreigner.
她跟了一个外国人。
I also used to love the smooth way in which the foreigner operated.
我也曾经喜欢那个老外平稳流畅的操作方式。
Being a foreigner was not a handicap.
身为外国人并不是一个障碍。
You don't sound like a foreigner talking English
听你讲英语，不像是外国人。
I have never met a foreigner who speaks such perfect chinese.
我从来没有遇到一个外国人汉语说得这么好。