What is the meaning of speck?

noun

• A very small spot.
  • usage: "the plane was just a speck in the sky"
  • synonyms: pinpoint
• Nontechnical usage. ( a tiny piece of anything)
  • synonyms: atom, molecule, particle, corpuscle, mote
• A slight but appreciable amount.
  • usage: "this dish could use a touch of garlic"
  • synonyms: touch, hint, tinge, mite, pinch, jot, soupcon

verb

• Produce specks in or on.
  • usage: "speck the cloth"