farewell (EN)
interjection, noun, adjective

interjection “farewell”

farewell
  1. a word used to say goodbye when someone is leaving
    "Farewell, my friend," she whispered as the train pulled away.

noun “farewell”

sg. farewell, pl. farewells or uncountable
  1. a message or expression hoping someone will be happy or safe after they leave permanently
    As she boarded the plane to start her new life abroad, her friends gathered to bid her a heartfelt farewell.

adjective “farewell”

farewell, non-gradable
  1. done, given, or said as a goodbye or as a final occurrence
    We attended a farewell party for our colleague who was moving to another city.