Nationalities

As you know, it's important to learn what the nationalities of countries are, because we use them as adjectives to describe things (Spanish food, British weather).

Some are obvious (countries ending in -land become nationalities ending in -ish, countries endig in -a become nationalities ending in -an), some aren't. Let's see what the nationalities of some English-speaking countries are.

Australia >>> Australian 

Belize >>> Belizean

Canada >>> Canadian

England >>> English

Ireland >>> Irish

Jamaica >>> Jamaican

New Zealand >>> New Zealander

Nigeria >>> Nigerian

the Phillipines >>> Filipino

Scotland >>> Scottish

the United States >>> American

Wales >>> Welsh

Although we tend to use nationalities as adjectives, we can also use them as a noun to describe the people from that country.
 
For most nationalities, we add an -s at the end of nationalities (the plural form) to describe the people from that country. For example:

the American people become the Americans

a New Zealander becomes New Zealanders

For nationalities ending in -ch / -sh, we simply add the before the nationality. For example, you can say:

English people become the English

WARNING. Some nationalities are also languages. With the, the nationality alone[1] refers to the people. Without the, the nationality alone refers to the language. For example:

the English are the English people

English is the English language

[1] en solitario