What is the meaning of bump?

noun

• A lump on the body caused by a blow.
• Something that bulges out or is protuberant or projects from its surroundings.
  • usage: "the gun in his pocket made an obvious bulge"; "the hump of a camel"; "he stood on the rocky prominence"; "the occipital protuberance was well developed"; "the bony excrescence between its horns"
  • synonyms: bulge, hump, swelling, gibbosity, gibbousness, jut, prominence, protuberance, protrusion, extrusion, excrescence
• An impact (as from a collision. )
  • usage: "the bump threw him off the bicycle"
  • synonyms: blow

verb

• Knock against with force or violence.
  • usage: "My car bumped into the tree"
  • synonyms: knock
• Come upon, as if by accident; meet with.
  • usage: "We find this idea in Plato"; "I happened upon the most wonderful bakery not very far from here"; "She chanced upon an interesting book in the bookstore the other day"
  • synonyms: find, happen, chance, encounter
• Dance erotically or dance with the pelvis thrust forward.
  • usage: "bump and grind"
• Assign to a lower position; reduce in rank.
  • usage: "She was demoted because she always speaks up"; "He was broken down to Sergeant"
  • synonyms: demote, relegate, break, kick downstairs
• Remove or force from a position of dwelling previously occupied.
  • usage: "The new employee dislodged her by moving into her office space"
  • synonyms: dislodge