adverb · in any case or regardless of quality; at any rate

别嫌少，好歹这也是他的一番心意。

punctuation, idiom · the quality or merit of something; a sense of what is right, wrong, or beneficial

你这孩子怎么不识好歹？

adverb · a serious accident or life-threatening misfortune

他万一有个好歹，我怎么向他家人交代？