What does 栅栏 (zhàlan) mean in English?

Card 68NPCR Level 5868/155
CARD68
PROGRESS44%
栅栏
柵欄
zhàlan
railings; paling; bars(Noun)

Reveal: Click/Space/Enter/↑↓/w/s/j/kNavigate: ←→/h/l/a/d