A hose is a long plastic or rubber tube that's used for moving a liquid from one place to another. You may use a hose to water your lawn, or to get gas from the pump into your car's tank. Don't use a hose to ingest liquids; use a glass instead.
A garden hose is useful for watering plants or washing your car, while firefighters use hoses to spray water on fires. A hose is similar to a pipe, being long, narrow, and hollow, with space for liquid to move through it, although a hose is flexible, and a pipe is commonly made of stiff metal or hard plastic. You can use the word as a verb, meaning "to spray with a hose," or as a noun meaning "sheer stockings."