noun
glee
GLEE/ɡliː/
Great delight or lively joy.
The man laughs with glee as his playful dog leaps toward him.

Etymology
Gliu joined mirth with entertainment, often involving music. Today's glee retains the joyful feeling already present in that older association with play and amusement.
In context
I feel Glee like a child reunited with a long lost playmate
More examples
- She takes obvious glee in proving her brother wrong.
- He can barely contain his glee at the unexpected bonus.
- To our glee, the teacher cancels today's quiz.
Forms
gleeful adjective — Feeling or showing great delight.
gleefully adverb — With great delight or lively joy.