What's the difference between saying goodbye and saying goodbye?

The difference between these two words is mood form, occasion and emotional connotation.

1, mood form: Farewell usually has the meaning of formal politeness, and it is a more conventional and friendly farewell way, with the emphasis on gently telling the other party that he is leaving. Farewell is often more emotional, sad, heavy or solemn, not only simply telling you to leave, but also containing more inner emotional expressions.

2. occasion: goodbye is usually used for short separation or short absence, such as temporary separation between friends and farewell after work. Farewell is often a permanent or permanent separation, such as graduation farewell, emigration, death of relatives and other major life nodes.

3. Emotional connotation: the emotional color of farewell is relatively light, and it is more a friendly and routine farewell. Farewell is often accompanied by deep nostalgia, nostalgia, sadness or respect, especially when facing farewell or an important turning point in life.