The word "Birlie" is a Scottish term that means "to spin or twirl rapidly". It is pronounced as /ˈbɪrli/, with the first syllable "bir" sounding like "beer" without the "r" sound, and the second syllable "li" pronounced like "lee". The "r" in the first syllable is silent, making it easy to confuse the spelling with "berlie". However, the correct spelling is "birlie". This term is commonly used in Scottish traditional dancing and is even featured as a step in the Highland Fling dance.