Words about words

Fading is the process by which something becomes faded. Something fades as it loses color, or loses light and becomes dim.

Something is fake if it is not real or genuine. Some fakes are a copy or imitation of the original, like a forgery of a painting or counterfeit money. Many fake things pretend to be real, like mock or fake fur made from polyester instead of real fur made from animal skins. Sometimes you cannot tell the difference between something real and something fake without examining it closely, such as a gold-plated ring and a solid gold ring.
The flowers in the picture are fake.
Most fakes and imitations are considered to be much less valuable than the real thing.

Something is false if it is not true, is not correct, or is wrong.
Sometimes an imitation of something real is called false, for example false teeth.

The dog in the picture is running very fast. Other things that move fast are racing cars, planes and some animals. The fastest animal in the world is the cheetah.
Another word for fast is quick. The opposite of fast is slow.

Fed is the past tense of feed.

For example, "I fed the cat before I left for work today."

Feet is the plural of foot. One foot, two feet. Most people have two feet, and most animals have four feet.

A feral animal is one that used to be domesticated but has escaped and now lives by itself, without any people to look after it. Many wilderness areas of the world have feral horses, goats and camels. Feral cats and dogs can be found both in wilderness areas and in cities.

Fiddling is a word for making a lot of small, repetitive movements, usually with another object. For example, "stop fiddling with your hair" or "if you fiddle with the aerial enough the TV should work".

A similar word to fiddle is twiddle.

A file is a collection of related pieces of paperwork. Files are usually stored inside a file cabinet. The process of storing files is called filing, for example "please file this under T".
On a computer, a file is a block of data that is accessed by its file name.

Filling is the process you take to make something full. The bucket in the picture is being filled with water from a faucet.