There are a few different ways to say 'hi' in Japanese:
Konnichiwa is 'hi' in Japanese.
You may say 'hoka no hi' or 'betsu no hi.'
hi ming
yami no hi
Hi no bakuhatsu
hi no tora
Hi no akuma
it's konichiwaIf you want to say hi in the morning, say, Ohio gozimasu
sa-hi-yen-gee dont know how to spell it in japanese
黒火 Kuro-hi
Ko-hi o kudasai.
液火 Eki-hi