flask

A flask is a container used for holding liquids. You might picture a scientist working with chemicals in a glass one, or someone carrying tea, water, or another drink in a metal one. The word is also often used for a small container for alcohol, especially one made to fit in a pocket. In everyday use, the idea is usually the same: a shaped container made for storing or carrying liquid.

Imagine a chilly autumn hike. You have packed carefully, and in your bag is a metal container filled with hot cocoa. That is one kind of flask. But the word has a wider story than that. It has long been used for bottle-shaped containers, often made of glass or metal. In laboratories, scientists use special flasks for mixing, heating, and storing liquids. Many of these are made of heat-resistant glass so they can be used safely in experiments.

The word also has a social side. For centuries, small, flat containers were used for carrying spirits such as whiskey or brandy. A hip flask is the classic example. It was shaped to sit neatly in a pocket, making it easy to carry a small drink discreetly. Because of this, the word can sometimes suggest something personal, portable, and a little old-fashioned.

Today, flasks come in several forms. Some are glass containers used in science. Others are metal drink containers made to keep liquids hot or cold. Some are small personal bottles for alcohol. The exact shape and material may change, but the basic idea stays the same: it is a container, usually shaped for easy holding or carrying, and used mainly for liquids. So whether it appears in a lab, on a walk, or in someone's coat pocket, a flask is a practical object with a long and varied history.