Iranian means anything to do with Iran, or a person from Iran.
Something is Irish if it relates to Ireland.
Japanese is anything relating to Japan, someone from Japan or the language spoken in Japan.
Mexicans are people from Mexico, and Mexican also means anything relating to Mexico.
Mongolian means anything relating to Mongolia, people from Mongolia or the language spoken in Mongolia.
Russian is the language spoken in Russia, someone from Russia or describes anything relating to Russia.
Scottish means a person from Scotland or anything to do with Scotland.
Something or someone is Swiss if it relates to or is from Switzerland.
