A, An, The

A bird

A is an indefinite article article and talk about nonspecific thing. We use a in front of nouns that begin with a consonant. We don't use a before plural nouns. For e.g. A bird.

A boy

A is an indefinite article article and talk about nonspecific thing. We use a in front of nouns that begin with a consonant. We don't use a before plural nouns. A boy.

An apple

An is an indefinite article article and talk about nonspecific thing. We use an in front of nouns that begin with a vowel(a,e,i,o,u). We don't use an before plural nouns. For e.g. An apple.

An orange

An is an indefinite article article and talk about nonspecific thing. We use an in front of nouns that begin with a vowel(a,e,i,o,u). We don't use an before plural nouns. For e.g. An orange.

The Earth

The is a definite article. The defines a noun as specific. The Earth.

The sun

The is a definite article. The defines a noun as specific. The Sun.

The Eiffel tower

The is a definite article. The defines a noun as specific. The Eiffel tower.