foreigner
[noun]
Synonyms: alien, immigrant, incomer, stranger

[TahlilGaran] English Synonym Dictionary ▲

for‧eign‧er /ˈfɒrənə, ˈfɒrɪnə $ ˈfɔːrənər, ˈfɑː-/ noun [countable]
someone who comes from a different country:
Some of the local people are suspicious of foreigners.

REGISTER
The word foreigner can sound negative and not very friendly. In everyday English, people often say people from other countries:
I like meeting people from other countries.

[TahlilGaran] Dictionary of Contemporary English ▲

foreigner
noun
BAD: Some foreigner students feel homesick.
GOOD: Some foreign students feel homesick.
BAD: In my job I have to speak foreigner languages.
GOOD: In my job I have to speak foreign languages.

Usage Note:
Foreigner is a noun and refers to a person: 'As a foreigner who had only just arrived in England, I found the phrase 'car boot sale' very confusing.'
The adjective is foreign : 'I enjoy visiting foreign countries.' 'His wife teaches English as a foreign language.'

[TahlilGaran] Dictionary of Common Errors ▲