Bottle

A bottle is a small container with a neck that is narrower than the body and a "mouth." Bottles are often made of glass, plastic or aluminum, and characteristically used to store liquids. e.g. water, milk, soft drinks, beer, wine, oil for cooking and as fuel, medicine, liquid soap, shampoo, ink, etc.
For some bottles a deposit is paid, which is returned after returning the bottle to the retailer. For other glass bottles there is often separate garbage collection for recycling.
A device used to close the mouth of a bottle is called a bottle cap.
A make-shift mail method after stranding on a deserted island is a message in a bottle: current may bring it to a shore where the message is read so that a rescue operation can be started. Glass is inert, rigid, and almost completely impermeable, so if the bottle is properly closed a letter inside can stay intact and readable for a long time.