What does 枚 (méi) mean in English?

Card 1248HSK 2010 Level 61248/2512
CARD1248
PROGRESS50%
méi
classifier for coins, rings, badges, pearls, sporting medals, rockets, satellites etc

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