godan verb (-mu), intransitive verb
jump into; rush into
Describes leaping or dashing into a place, often with energy or suddenness. Can be used literally for physical movement or figuratively for plunging into a situation.
彼はプールに躍り込んだ。
He jumped into the pool.
子供たちは教室に躍り込んできた
The children came rushing into the classroom.