What does 支撑 (zhīchēng) mean in English?

Card 3350HSK Level 43350/3571
CARD3350
PROGRESS94%
支撑
支撐
zhīchēng
support; crutch(Verb)

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