A bump is an area that bulges out, like a pregnant woman's stomach. To bump someone is to knock into them.

A pimple is a little bump. A camel’s hump is a larger bump. There are speed bumps sticking up in the road to keep drivers from going too fast. When you bump someone, you hit them with your whole body. If the person in front of you stops walking and you're not paying attention, you might bump right into them. Bumping often happens by accident, unless of course you are doing "the bump" (a 1970's dance).

Definitions of bump
  1. noun
    an impact (as from a collision)
    “the bump threw him off the bicycle”
    synonyms: blow
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    jar, jolt, jounce, shock
    a sudden jarring impact
    any violent blow
    rap, strike, tap
    a gentle blow
    bang, bash, belt, knock, smash
    a vigorous blow
    buffeting, pounding
    repeated heavy blows
    a glancing blow from or on the side of something (especially motor vehicles)
    slap, smack
    a blow from a flat object (as an open hand)
    type of:
    the striking of one body against another
  2. noun
    something that bulges out or is protuberant or projects from its surroundings
    synonyms: bulge, excrescence, extrusion, gibbosity, gibbousness, hump, jut, prominence, protrusion, protuberance, swelling
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    frontal eminence
    either prominence of the frontal bone above each orbit
    occipital protuberance
    prominence on the outer surface of the occipital bone
    a part that bulges deeply
    a headlike protuberance on an organ or structure
    a bump on a ski slope
    nub, nubble
    a small lump or protuberance
    a sharp protuberance
    any small rounded protuberance (as on certain plants or animals)
    type of:
    any solid convex shape that juts out from something
  3. noun
    a lump on the body caused by a blow
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    type of:
    harm, hurt, injury, trauma
    any physical damage to the body caused by violence or accident or fracture etc.
  4. verb
    come upon, as if by accident; meet with
    synonyms: chance, encounter, find, happen
  5. verb
    knock against with force or violence
    “My car bumped into the tree”
    synonyms: knock
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    type of:
    collide with, hit, impinge on, run into, strike
    hit against; come into sudden contact with
  6. verb
    dance erotically or dance with the pelvis thrust forward
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    type of:
    dance, trip the light fantastic, trip the light fantastic toe
    move in a pattern; usually to musical accompaniment; do or perform a dance
  7. verb
    remove or force from a position of dwelling previously occupied
    synonyms: dislodge
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    cause to fall off
    type of:
    cause to move, usually with force or pressure
  8. verb
    assign to a lower position; reduce in rank
    synonyms: break, demote, kick downstairs, relegate
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    advance, elevate, kick upstairs, promote, raise, upgrade
    give a promotion to or assign to a higher position
    remove from the center of activity or attention; place into an inferior position
    bring to humbler or weaker state or condition
    type of:
    assign, delegate, depute, designate
    give an assignment to (a person) to a post, or assign a task to (a person)
Word Family

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