A part
飛び
Shown as a part of 1 word so far, read one way.
とび 1 word
- 飛び込むとびこむto jump in, to leap in, to plunge into
飛び込む · here “jumping”
Also written with 飛び
These words contain the character in their spelling but show no breakdown that names it, so nothing is claimed about its role in them.