a number or letter indicating quality (especially of a student's performance)

a distinguishing symbol

a reference point to shoot at

a visible indication made on a surface

the impression created by doing something unusual or extraordinary that people notice and remember

a symbol of disgrace or infamy

formerly the basic unit of money in Germany

a person who is gullible and easy to take advantage of

a written or printed symbol (as for punctuation)

a perceptible indication of something not immediately apparent (as a visible clue that something has happened)

an indication of damage

a marking that consists of lines that cross each other

something that exactly succeeds in achieving its goal