A yett is a pheesical hinderance that can be opent or closed for tae hinder or allou fowk or craiturs tae gang intae or oot o a space inby waws, or a fence, or thay micht be juist decorative.

Yetts tae big hooses often haes fantoush airnwark.

Lairger yetts can be uised for a hail biggin, sic as a castle or fortifee'd toun, or the actual doors that blocks entry throu. The day mony yetts is opent by an automatit yett operator.