# فِي ٱللُّغَةِ ٱلْإِنْجْلِيزِيَّةِ:
### Etymology

It references a perception about families of Irish Catholics who may not use birth control (and thus may have children in quicker succession).

### اسم

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* قالب:slang Siblings born less than 12 months apart - usually in the same calendar year, or who are in the same class in school.
* صِيغَةُ جَمْعٍ مُفْرَدُهَا Irish twin

#### Usage notes

* The term is not used in Ireland.
* The term can also be used more generally to refer to any siblings born close together.

#### Related terms

* Irish triplets