fast

Definition

Fast is a word that can have many different meanings. In science, fast usually means to move or happen quickly. For example, a cheetah can run very fast, and a chemical reaction can happen very fast.

Fast can also mean eating very little or nothing at all. This is called fasting, and it is often done for religious or health reasons. When people fast, they usually only drink water or clear liquids.

How can the word be used?

Something that is fast is moving or happening quickly.

Different forms of the word

Adjective: fast, rapid, quick.

Adverb: fast, quickly, rapidly.

Noun: fast, fasting.

Verb: to fast, to abstain from food.

Etymology

The word "fast" comes from the Old English word fæst, which means "firm," "steadfast," or "secure." It was first used in English in the 8th century, and it is still used today to refer to something that is moving or happening quickly.

Question

What comes to mind when you think of the word fast?