[Home](./index.md) > [@keymanapp/kmc-model](./kmc-model.md) > [WordBreakerSpec](./kmc-model.wordbreakerspec.md) ## WordBreakerSpec interface Keyman 14.0+ word breaker specification: Can support all old word breaking specification, but can also be extended with options. 14.0 **Signature:** ```typescript export interface WordBreakerSpec ``` ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [joinWordsAt?](./kmc-model.wordbreakerspec.joinwordsat.md) | readonly | string\[\] |

_(Optional)_ If present, joins words that were split by the word breaker together at the given strings. e.g.,

joinWordsAt: \['-'\] // to keep hyphenated items together

14.0

| | [overrideScriptDefaults?](./kmc-model.wordbreakerspec.overridescriptdefaults.md) | readonly | OverrideScriptDefaults |

_(Optional)_ Overrides word splitting behaviour for certain scripts. For example, specifing that spaces break words in certain South-East Asian scripts that otherwise do not use spaces.

14.0

| | [use](./kmc-model.wordbreakerspec.use.md) | readonly | [SimpleWordBreakerSpec](./kmc-model.simplewordbreakerspec.md) | |