What does 年代 (niándài) mean in English?

Card 1102HSK Level 21102/2021
CARD1102
PROGRESS55%
年代
niándài
time; years; age(Noun)
Click to reveal
← Previous↑ DeckNext →

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