runaway
🇺🇸
/ˈrʌnəweɪ/
🇬🇧
/ˈrʌnəweɪ/
gone without permission or notice
The runaway dog was found in the park.
out of control
The runaway bike hit a tree.
occurring very easily or quickly
The game became a runaway success.
a person who has left without permission
The runaway found a place to sleep under the bridge.