bye vs conceding

bye and conceding both are nouns.

Word	Noun	Adjective	Verb	Adverb
bye	Yes	No	No	No
conceding	Yes	No	No	No

As nouns, conceding is a hypernym of bye; that is, conceding is a word with a broader meaning than bye:

bye: an automatic advance to the next round in a tournament without playing an opponent
conceding: the act of conceding or yielding

Other hypernyms of bye include concession, yielding.

bye (noun)	conceding (noun)
a farewell remark	the act of conceding or yielding
an automatic advance to the next round in a tournament without playing an opponent