n A generally tubular invertebrate of the annelid phylum; an earthworm.
n More loosely, any of various tubular invertebrates resembling annelids but not closely related to them, such as velvet worms, acorn worms, flatworms, or roundworms.
n (archaic) A type of wingless "dragon", especially a gigantic sea serpent or any kind of dragon.
n (fantasy, science fiction) Either a mythical "dragon" (especially wingless), a gigantic sea serpent, or a creature that resembles a Mongolian death worm.
n A contemptible or devious being.
n (computing) A self-replicating program that propagates through a network.
n (cricket) A graphical representation of the total runs scored across a number of overs.
n Anything helical, especially the thread of a screw.
n A spiral instrument or screw, often like a double corkscrew, used for drawing balls from firearms.
n The spiral wire of a corkscrew.
n (anatomy) A muscular band in the tongue of some animals, such as dogs; the lytta.
n The condensing tube of a still, often curved and wound to save space.
n A short revolving screw whose threads drive, or are driven by, a worm wheel or rack by gearing into its teeth.
n (obsolete) Any creeping or crawling animal, such as a snake, snail, or caterpillar.
n (figuratively) An internal tormentor; something that gnaws or afflicts one’s mind with remorse.
n (mathematics) A strip of linked tiles sharing parallel edges in a tiling.
n (anatomy) The lytta.
n (preceded by definite article) A dance, or dance move, in which the dancer lies on the floor and undulates the body horizontally thereby moving forwards.
v (transitive) To make (one's way) with a crawling motion.
v (intransitive) To move with one's body dragging the ground.
v (intransitive, figuratively) To work one's way by artful or devious means.
v (transitive, figuratively) To work (one's way or oneself) (into) gradually or slowly; to insinuate.
v (often followed by out) To effect, remove, drive, draw, or the like, by slow and secret means.
v (transitive, figuratively, in “worm out of”) To drag out of, to get information that someone is reluctant or unwilling to give (through artful or devious means or by pleading or asking repeatedly).
v (transitive, nautical) To fill in the contlines of (a rope) before parcelling and serving.
v (transitive) To deworm (an animal).
v (transitive) To cut the worm, or lytta, from under the tongue of (a dog, etc.) for the purpose of checking a disposition to gnaw, and formerly supposed to guard against canine madness.
v (transitive) To clean by means of a worm; to draw a wad or cartridge from, as a firearm.
n (computing) Write once read many (or read multiple), with regards to a disc medium. See write once.
n A surname.