Bum vs. Bump — What's the Difference?

A tramp; a vagrant.

To strike or collide with

A lazy or shiftless person, especially one who seeks to live solely by the support of others.

To cause to knock against an obstacle

An incompetent, insignificant, or obnoxious person

To knock to a new position; shift

One who spends a lot of time doing a particular recreational activity

To shake up and down; jolt

The buttocks.

To displace from a position within a group or organization.

To live by begging and scavenging from place to place. Often used with around.

To deprive (a passenger) of reserved travel accommodations because of overbooking.

To pass time idly; loaf. Often used with around.

To raise; boost

(Informal) To be depressed, disheartened, or dismayed

(Sports) To pass (a volleyball) by redirecting it with the forearms.

To acquire by begging; cadge.

To hit or knock against something

(Informal) To depress, dishearten, or dismay. Often used with out.

To proceed with jerks and jolts

Inferior; worthless

(Sports) To bump a volleyball.

Disabled; malfunctioning

A blow, collision, or jolt.

Unfavorable or unfair

The sound of something bumping

Unpleasant; lousy

A raised or rounded spot; a bulge.

The buttocks.

A slight swelling or lump.

The anus.

(Informal) See baby bump.

A homeless person, usually a man.

A rise or increase, as in prices or enrollment.

A lazy, incompetent, or annoying person, usually a man.

A forward thrust of the pelvis, as in a burlesque striptease.

A player or racer who often performs poorly.

(Sports) A pass in volleyball made by redirecting the ball with the inside of the forearms, especially when extended and held together.

(colloquial) A drinking spree.

A small dose of an illegal drug, especially cocaine inhaled in powdered form.

(dated) A humming noise.

A shot of hard liquor, sometimes accompanied by a beer chaser.

(obsolete) A bumbailiff.

A light blow or jolting collision.

To sodomize; to engage in anal sex.

The sound of such a collision.

To ask someone to give one (something) for free; to beg for something.

A protuberance on a level surface.

To stay idle and unproductive, like a hobo or vagabond.

A swelling on the skin caused by illness or injury.

To wet the end of a marijuana cigarette (spliff).

(obsolete) One of the protuberances on the cranium which, in phrenology, are associated with distinct faculties or affections of the mind. Also the faculty itself

To depress; to make unhappy.

(rowing) The point, in a race in which boats are spaced apart at the start, at which a boat begins to overtake the boat ahead.

(intransitive) To make a murmuring or humming sound.

The swollen abdomen of a pregnant woman.

(UK) An expression of annoyance.

(Internet) A 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.

Of poor quality or highly undesirable.

A temporary increase in a quantity, as shown in a graph.

Unfair.

(slang) A dose of a drug such as ketamine or cocaine, when snorted recreationally.

Injured and without the possibility of full repair, defective.

(preceded by definite article) A disco dance in which partners rhythmically bump each other's hips together.

Unpleasant or unhappy.

In skipping, a single jump over two consecutive turns of the rope.

The buttock.

(uncountable) A coarse cotton fabric.

A humming noise.

A training match for a fighting dog.

To make murmuring or humming sound.

The jaw of either of the middle pockets.

To borrow without intention of returning; to cadge; as, to bum a cigarette; to bum a cup of coffee; - usually with inexpensive items as the object.

Music, especially played over speakers at loud volume with strong bass frequency response.

A person who is deemed to be despicable or contemptible;

(industrial relations) A reassignment of jobs within an organization (for example, when an existing employee leaves) on the basis of seniority.

A disreputable vagrant;

The breeding call made by the bittern; a boom.

Person who does no work;

To knock against or run into with a jolt.

The fleshy part of the human body that you sit on;

To move up or down by a step; displace.

Ask for and get free; be a parasite

(Internet) To 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.

Be lazy or idle;

To suddenly boil, causing movement of the vessel and loss of liquid.

Of very poor quality

(transitive) To move (a booked passenger) to a later flight because of earlier delays or cancellations.

(transitive) To move the time of (a scheduled event).

(transitive) To pick (a lock) with a repeated striking motion that dislodges the pins.

To make a loud, heavy, or hollow noise; to boom.

To spread out material so as to fill any desired number of pages.

To assassinate; to bump off.

To displace (another employee in an organization) on the basis of seniority.

To anger, irritate.

Of a bittern, to make its characteristic breeding call.

(internet) Posted 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.

To strike, as with or against anything large or solid; to thump; as, to bump the head against a wall.

To come in violent contact with something; to thump.

To make a loud, heavy, or hollow noise, as the bittern; to boom.

A thump; a heavy blow.

A swelling or prominence, resulting from a bump or blow; a protuberance.

One of the protuberances on the cranium which are associated with distinct faculties or affections of the mind; as, the bump of "veneration;" the bump of "acquisitiveness."

The act of striking the stern of the boat in advance with the prow of the boat following.

The noise made by the bittern.

A lump on the body caused by a blow

Something that bulges out or is protuberant or projects from a form

An impact (as from a collision);

Knock against with force or violence;

Come upon, as if by accident; meet with;

Dance erotically or dance with the pelvis thrust forward;

Assign to a lower position; reduce in rank;

Remove or force from a position of dwelling previously occupied;