Originates from pilots earning their wings badge; indicates accomplishment in aviation.

Aviation Origin

Used metaphorically for achieving any hard-won skill, not just in flying.

Metaphoric Use

Conveys a sense of pride and celebration upon completing a difficult task.

Symbolizes newfound independence or reaching an important phase in life.

Implies a significant change, like a caterpillar to a butterfly.

Not only for achievements; also for experiences that lead to personal development.