"Blend of Bri and Lee"
The name Brilee is commonly a female name from the "American" origin.
Brilee is a modern American formation, most plausibly a blend of the name-part Bri, as in Brianna or Bree, and Lee, a surname and given name. The same -lee ending occurs in other American girls' names such as Kaylee and Brynlee. It is not an established name in an older naming tradition; it first appears in United States birth records in 1993.
The pronunciation of Brilee is BREE-lee.