also: コウモリがさ
noun
Western-style umbrella
Refers specifically to a Western-style umbrella with a handle and ribs, as opposed to a traditional Japanese umbrella (和傘). The name comes from the resemblance to a bat's spread wings.
急に雨が降ってきたので、こうもり傘をさした。
It suddenly started raining, so I opened my umbrella.
このこうもり傘は折りたたみ式で、鞄
This umbrella is foldable and can be carried in a bag.