What is the meaning of gum?

noun

• A preparation (usually made of sweetened chicle) for chewing.
  • synonyms: chewing gum
• The tissue (covered by mucous membrane) of the jaws that surrounds the bases of the teeth.
  • synonyms: gingiva
• Any of various substances (soluble in water) that exude from certain plants; they are gelatinous when moist but harden on drying.
• Cement consisting of a sticky substance that is used as an adhesive.
  • synonyms: glue, mucilage
• Wood or lumber from any of various gum trees especially the sweet gum.
  • synonyms: gumwood
• Any of various trees of the genera Eucalyptus or Liquidambar or Nyssa that are sources of gum.
  • synonyms: gum tree

verb

• Cover, fill, fix or smear with or as if with gum.
  • usage: "if you gum the tape it is stronger"
• Grind with the gums; chew without teeth and with great difficulty.
  • usage: "the old man had no teeth left and mumbled his food"
  • synonyms: mumble
• Become sticky.
• Exude or form gum.
  • usage: "these trees gum in the Spring"