This question already has an answer here:

I see おうございます in a dictionary also being written as おはようございます but why is even there if it's read as HA-YA, not HA-YO? How do they know how to morph readings of kanji in a phrase into something else if it's not in the dictionary?

marked as duplicate by ajsmart, naruto, Community Jul 27 '18 at 0:55

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • Comment below if the link above doesn't answer your question. – ajsmart Jul 27 '18 at 0:05

Browse other questions tagged or ask your own question.