What does 隐瞒 (yǐnmán) mean in English?

Card 3118HSK Level 43118/3571
CARD3118
PROGRESS87%
隐瞒
隱瞞
yǐnmán
keep in; hush up; hide(Verb)

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