What does 维护 (wéi hù) mean in English?

Card 998HSK 2010 Level 5998/1311
CARD998
PROGRESS76%
维护
維護
wéi hù
to defend; to safeguard; to protect; to uphold; to maintain

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