Bottles are containers that come in various shapes and sizes. They are used to store liquids like water, drinks or even medicines. However, sometimes you may want to use an alternative word for 'bottle,' and there are several options available. One such option is a 'flask,' which is a small flat bottle with a screw cap. Another option is a 'jar,' which is typically used for pickles, preserves or jams. You could also use 'canteen' to describe a large bottle or 'jug' to refer to a large container with a handle. Finally, 'vial' is a small bottle used to store liquid medicines or perfumes. There are many other synonyms to describe bottles, and choosing the right one can add variation to your writing.