Sunshine or happy temperament
A cheerful diminutive of the English word 'sun', Sunnie is a modern phonetic spelling of Sunny. It evokes warmth, light, and a bright disposition, often used as a nickname that has transitioned into a standalone given name.
American child actress known for the TV series Bones
Subject of national media attention regarding gender expression in schools
US births per 5-year period, 1990–present (SSA data).