# Interface: SymbolDictionary

## Highcharts. SymbolDictionary

An extendable collection of functions for defining symbol paths. Symbols are used internally for point markers, button and label borders and backgrounds, or custom shapes. Extendable by adding to Highcharts.SVGRenderer#symbols.

### Members

#### [key:string] :function|undefined

  ##### Type:

  - function | undefined

#### arc :function|undefined

  ##### Type:

  - function | undefined

#### callout :function|undefined

  ##### Type:

  - function | undefined

#### circle :function|undefined

  ##### Type:

  - function | undefined

#### diamond :function|undefined

  ##### Type:

  - function | undefined

#### square :function|undefined

  ##### Type:

  - function | undefined

#### triangle :function|undefined

  ##### Type:

  - function | undefined