Definitions

1. proper noun

A male given name of Breton origin, derived from the Old Breton name ‘Drustan’ or ‘Druscan’, meaning ‘riot’ or ‘uproar’.

“The famous opera ‘Tristan und Isolde’ was composed by Richard Wagner.”

2. noun

A person who has a strong emotional attachment to someone, often to the point of being obsessive.

“He had become a bit of a Tristan, pining for his lost love and writing her countless love letters.”