stranger
A stranger is someone who you have never met before.
A stranger appeared.
Antonio was a stranger to all of us.
Be careful
Don't use ‘stranger’ to talk about someone who comes from a country that is not your own. You can refer to him or her as a foreigner, but this word can sound rather impolite. It is better to say, for example, ‘someone from abroad’ or ‘a person from overseas’.
Don't use ‘stranger’ to talk about someone who comes from a country that is not your own. You can refer to him or her as a foreigner, but this word can sound rather impolite. It is better to say, for example, ‘someone from abroad’ or ‘a person from overseas’.
We have some visitors from abroad coming this week.
Most universities have many postgraduate students from overseas.