noun

• (informal) Very minor damage caused by being struck; a small dent or chip.
  "Mike hit the bottom and picked up a little ding on his head."
• (colloquial) A rejection.
  "I just got my first ding letter."

verb

• (transitive) To hit or strike.
• (transitive) To inflict minor damage upon, especially by hitting or striking.
  "If you surf regularly, then you're going to ding your board."
• (transitive, colloquial) To fire or reject.
  "His top school dinged him last week."
• (transitive, colloquial) To deduct, as points, from (somebody), in the manner of a penalty; to penalize.
  "My bank dinged me three bucks for using their competitor's ATM."

noun

• (colloquial, roleplaying games, especially video games) The act of levelling up.

verb

• (intransitive) To make a high-pitched resonant sound like a bell.
  "The fretful tinkling of the convent bell evermore dinging among the mountain echoes."
• (transitive) To keep repeating; impress by reiteration, with reference to the monotonous striking of a bell.
  "If I'm to have any good, let it come of itself; not keep dinging it, dinging it into one so."
• (intransitive, colloquial, roleplaying games, especially video games) To level up.