I don’t have any specific reason.
Do you have any reason for not having settled your business expenses yet?
Using logic and reason, he solved the case of the rubber gloves and the culprit was the balloon maker.
The reason reason is so reason-ish! That's why this word means reason as well, how could it not? Do you have a reason why it shouldn't be? I thought not.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.