What does 观念 (guānniàn) mean in English?

Card 38NPCR Level 3538/54
CARD38
PROGRESS70%
观念
觀念
guānniàn
concept(Noun)
Click to reveal
← Previous↑ DeckNext →

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