farewell
n. C / U B2 Upper Intermediate US //ˌfɛɹˈwɛɫ// UK //feəwˈɛl// farewell
n. an act of saying goodbye to someone or something. You use it when you are leaving a place or when someone is moving away.
n. an act of parting or of marking a departure. Often carries a more formal or emotional weight than a simple goodbye.
They gathered at the station to say a final farewell.
The company organized a small party as a farewell to the manager who was retiring after thirty years.
His moving farewell to the troops emphasized the shared sacrifices of the campaign and the uncertain peace that lay ahead.
Usage
Often functions as an attributive noun in phrases like 'farewell party' or 'farewell speech'.