Airbrush = air + brush (paintbrush), that is, it is a tool to paint by spraying paint with air.
It’s easier to understand if you imagine “the smaller color spray”.
What airbrushes are good at is
- Overpaiting without disturbing the previous color
- Painting evenly
Taking advantage of these characteristics, it is widely used in automobile custom paint, model painting, nail art, body art, painting, etc.
For more information, please refer to Wikipedia or search by “airbrush”.