vying with one another; scrambling to be first
Describes a situation where many people eagerly try to do something at the same time, often with a sense of competition or rush. Commonly used with verbs like 手を挙げる, 飛びつく, or 乗り出す.
As soon as the new product went on sale, customers rushed to the store, each trying to be first.
When volunteers were called for, students eagerly raised their hands, vying with one another.