Understanding Flag Terminology

Flags are more than colorful pieces of fabric fluttering in the wind. They are powerful symbols of identity, unity, and heritage. Whether national, state, military, or organizational, each flag is carefully designed with meaning woven into every color, shape, and element. Understanding flag terminology can help discuss your next project with your favorite flag company.  

Field

The field is the background of a flag, often a single solid color or a combination of stripes. For example, the American flag’s red and white stripes make up much of its field.

Canton

A canton is the square or rectangular area in the top left corner of a flag when flown. On the U.S. flag, the blue section with 50 stars is the canton. Many flags place symbols of unity or authority here.

Hoist and Fly

The hoist is the side of the flag attached to the pole or halyard. The fly is the opposite side, the free end that waves in the wind. 

Vexillology

Vexillology is the study of flags—their history, symbolism, design, and cultural significance. The word comes from the Latin vexillum, meaning “flag” or “standard,” and the Greek suffix -logy, meaning “study of.”

People who study flags are called vexillologists, and the field covers a wide range of topics, such as:

• Design principles: What makes a flag simple, recognizable, and meaningful.
• Symbolism: The meanings behind colors, shapes, and patterns.
• History: How flags have evolved alongside nations, militaries, and movements.
• Usage: The rules and customs around how and when flags are displayed.

Header & Grommets

This is how most flags are finished. On the hoist side of the flag, there is typically a canvas header with brass grommets in the canvas. This is how the flag is attached to the flagpole. 

Pole Hem or Pole Sleeve

This is an alternative to header & grommets. It is a less common way flags are finished. Mostly used on indoor flagpoles to have a clean look to the flag and flagpole. They can be used on outdoor flagpoles, but it is not as common as header & grommets. 

By learning this vocabulary, you gain more than technical knowledge, you begin to see how flags tell stories. Every stripe, star, or symbol represents centuries of culture, struggle, and pride. Next time you look at a flag, you’ll recognize not just its colors, but the carefully chosen language of design that makes it meaningful.