What is the meaning of rib?

noun

• Support resembling the rib of an animal.
• Any of the 12 pairs of curved arches of bone extending from the spine to or toward the sternum in humans (and similar bones in most vertebrates.
  • synonyms: costa
• Cut of meat including one or more ribs.
• A teasing remark.
• A riblike supporting or strengthening part of an animal or plant.
• A projecting molding on the underside of a vault or ceiling; may be ornamental or structural.

verb

• Form vertical ribs by knitting.
  • usage: "A ribbed sweater"
• Subject to laughter or ridicule.
  • usage: "The satirists ridiculed the plans for a new opera house"; "The students poked fun at the inexperienced teacher"; "His former students roasted the professor at his 60th birthday"
  • synonyms: ridicule, roast, guy, blackguard, laugh at, jest at, make fun, poke fun