noun

• Act of pointing out or indicating.
• A fact that shows that something exists or may happen.
• (rare) A mark or another symbol used to represent something.
• Discovery made; information.
• (obsolete) Explanation; display.
• (medicine) Any symptom or occurrence in a disease, which serves to direct to suitable remedies.
• (finance) An declared approximation of the price at which a traded security is likely to commence trading.