a.

1. 有记号的
2. 显著的
3. 受注意的；有名的

adj.

1. having a visible mark.
   ▸(of playing cards) having distinctive marks on their backs to assist cheating.
2. Linguistics  (of words or forms) distinguished by a particular feature.
3. clearly noticeable.
4. singled out, especially as a target for attack:
   a marked man.