little
The German word 'klein' is used to describe something as small or little in size. It can be used as an adjective before a noun or as a standalone adjective in a sentence. For example, 'Das ist ein kleines Haus' means 'That is a little house'. It is important to note that 'klein' is used for size, not age. For example, 'Das ist ein kleines Kind' means 'That is a little child', but it refers to the child's size, not age.
The house is small
This sentence is using 'klein' to describe the size of the house. It is a simple statement about the physical appearance of the property.
This is my little brother
Here, 'klein' is used in the comparative form 'kleiner' to indicate the relative age or size of siblings. It's a common phrase used to introduce younger family members.
She has a small dog
In this example, 'klein' is used to depict the size of the pet. It's an adjective that can be used to describe anything from stature, amount, intensity etc.