What is the meaning of comb?

noun

• A flat device with narrow pointed teeth on one edge; disentangles or arranges hair.
• The fleshy red crest on the head of the domestic fowl and other gallinaceous birds.
  • synonyms: cockscomb, coxcomb
• Any of several tools for straightening fibers.
• Ciliated comb-like swimming plate of a ctenophore.
• The act of drawing a comb through hair.
  • usage: "his hair needed a comb"
  • synonyms: combing

verb

• Straighten with a comb.
  • usage: "comb your hair"
• Search thoroughly.
  • usage: "They combed the area for the missing child"
  • synonyms: ransack
• Smoothen and neaten with or as with a comb.
  • usage: "comb your hair before dinner"; "comb the wool"
  • synonyms: comb out, disentangle