also: ランナウエイ · ランナウェー
noun
Loanword from English 'runaway', used as a noun to refer to a person or thing that has run away, or an act of running away. Often used in compound terms or as a modifier.
その馬はランナウェイになって、牧場を飛び出した。
The horse became a runaway and bolted from the ranch.
彼は家出をして、ランナウェイとして数週間過ごした。
He ran away from home and spent several weeks as a runaway.
逃走 is a formal term for flight or escape, often used in legal or news contexts, whereas ランナウェイ is a casual loanword.
Loanword from English 'runaway', adopted into Japanese with katakana spelling.