a sudden noisy expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis

punishment inflicted by kicking the victim in the behind

travel by being carried on horseback

a programmer for whom computing is its own reward; may enjoy the challenge of breaking into other computers but does no harm

the act of smacking something; a blow delivered with an open hand

a machine used in a machining process known as lapping, in which two surfaces are rubbed together with an abrasive between them.

a revolving stone shaped like a disk; used to grind or sharpen or polish edge tools

a kiln for making bricks

a course of bricks place next to each other (usually in a straight line)

(computing) a system that enforces boundaries between computer networks