noun · to issue a card such as a credit card or membership card

这家银行的发卡量位居全国第一。

verb · to reject a romantic interest or break up with someone (slang)

他向心仪的女孩表白，结果被发卡了。

noun · a clip, grip, or barrette used for holding hair in place

她头上戴着一个漂亮的粉色发卡。