I have a collection of knitting charts.

The Nolan charts provide a visual representation of political ideologies.

The company uses organizational charts to visualize the hierarchy of its departments.

The company uses organisational charts to visualize the hierarchy of its departments.

Psychrometric charts are used to analyze and calculate air properties.

The pop charts are constantly changing with new hits.

The step charts in this dance routine are challenging.

I have eight Vosem charts in my office.

Radar charts are commonly used to compare multiple variables.

I have multiple Smith charts for different frequency ranges.