sniper

noun

1. 1

   A person using long-range small arms for precise attacks from a concealed position.

2. 2

   Any attacker using a non-contact weapon against a specific target from a concealed position.

3. 3

   One who shoots from a concealed position.

4. 4

   One who criticizes.

5. 5

   (ice hockey slang) A player who specializes in scoring goals.

   “Alexander Ovechkin is often regarded as the greatest sniper of his generation.”

6. 6

   A person or automated process set up by a person who or which attempts to win an online auction by placing a bid only seconds before the auction ends, leaving no time for other bidders to respond