Definitions

1. noun

a person, especially a male, who is devoted to or fascinated by something, such as a particular hobby or activity

“The die-hard fan was a die at the concert, singing along to every song.”

2. verb

to be very enthusiastic or dedicated to something

“She dierly supports her favorite sports team and attends every game.”

3. verb

to die or perish (often used in the phrase ‘to die on the vine’)

“The project dier after the investors withdrew their funding.”