プログレッシブ和英中辞典(第4版)の解説
ひとがき【人垣】
a crowd [throng] (of people) standing in rows
二人の男がけんかを始めたので,大勢の人が人垣を作って見ていた
When the two men started fighting, people crowded around to watch.
道の両側に人垣ができた
The streets were lined with (crowds of) people on either side.