Definitions

1. proper noun

a masculine given name, derived from Sebastianus, a Latin name meaning ‘from Sebastia’.

“My brother Sebastian is getting married next year.”

2. noun

a person from Sebastia, an ancient city in Asia Minor.

“The archaeologists discovered the ruins of Sebastia, including a statue of a famous Sebastian.”

3. adjective

relating to or characteristic of Sebastia or Sebastian.

“The Sebastians were known for their warm hospitality and love of music.”