Definitions
1.nounA light blow or jolting collision.
2.nounThe sound of such a collision.
3.nounA protuberance on a level surface.
4.nounA swelling on the skin caused by illness or injury.
5.nounOne of the protuberances on the cranium which, in phrenology, are associated with distinct faculties or affections of the mind. Also (metonymically) the faculty itself"the bump of veneration; the bump of acquisitiveness"
6.nounThe point, in a race in which boats are spaced apart at the start, at which a boat begins to overtake the boat ahead.
7.nounThe swollen abdomen of a pregnant woman.
8.nounA post in an Internet forum thread made in order to raise the thread's profile by returning it to the top of the list of active threads.
9.nounA temporary increase in a quantity, as shown in a graph."US presidential nominees get a post-convention bump in survey ratings."
10.nounA dose of a drug such as ketamine or cocaine, when snorted recreationally.
11.nounThe noise made by the bittern; a boom.
12.noun(preceded by definite article) A disco dance in which partners rhythmically bump each other's hips together.
13.nounIn skipping, a single jump over two consecutive turns of the rope.
14.nounA coarse cotton fabric.
15.nounA training match for a fighting dog.
16.nounThe jaw of either of the middle pockets.
17.nounMusic, especially played over speakers at loud volume with strong bass frequency response.
18.verbTo knock against or run into with a jolt.
19.verbTo move up or down by a step; displace."I bumped the font size up to make my document easier to read."
20.verbTo post in an Internet forum thread in order to raise the thread's profile by returning it to the top of the list of active threads.
21.verb(of a superheated liquid) To suddenly boil, causing movement of the vessel and loss of liquid.
22.verbTo move (a booked passenger) to a later flight because of earlier delays or cancellations.
23.verbTo move the time of (a scheduled event).
24.verbTo pick (a lock) with a repeated striking motion that dislodges the pins.
25.verbTo make a loud, heavy, or hollow noise; to boom.
26.verbTo spread out material so as to fill any desired number of pages.