regularly going to; frequenting; commuting to
Suffix attached to a noun indicating a place one regularly goes to. Often used in compounds like 学校通い (going to school) or 病院通い (regular hospital visits).
彼は週に三回、ジム通いをしている。
He goes to the gym three times a week.
病院通いが続いて大変だ。
It's tough having to keep going to the hospital.
attending shows; frequenting the theater
regular medical visits; being under a doctor's care
Derived from the verb 通う (かよう, 'to go regularly'), with the suffix い forming a noun-like element. The reading がよい is a euphonic change from かよい.