1A lost child or person; someone (often a child, but sometimes an adult) who has become separated from their guardian or gotten lost.
駅で迷子のお知らせが流れた。
An announcement about a lost child was played at the station.
公園で迷子になって泣いている子を見つけた。
I found a child crying in the park who had gotten lost.
親は迷子防止のために連絡先を書いた名札を持たせた。
The parents had the child wear a name tag with contact information to prevent them from getting lost.
人混みの中で妻とはぐれて、まるで迷子になった気分だった。
I got separated from my wife in the crowd and felt just like a lost child.