What does O.K. stand for?

A perimeter is the distance around the boundary of a closed plane figure, such as a rectangle or circle. A parameter is a quantity that, when varied, affects the value of another quantity. Parameters are established to aid in determining an unknown figure.

Bimonthly meetings are held every two months. Meetings held twice a month are sometimes called bimonthly, but they are more accurately described as semimonthly.

A Fascist general named Gonzalo Queipo de Llano y Sierro is said to have coined the phrase during the Spanish Civil War (1936-1939). As four Fascist army columns closed in on Madrid, the general described his supporters inside the city as a “fifth column.” The term came to mean any group of subversives trying to…

The word Nightmare was named after a creature but not a horse. According to ancient superstition dating back to the eighth century in England, people thought a female monster or spirit, a so-called mare, would sit upon a sleeper’s chest. This would cause a feeling of suffocation from which the sleeper would try to free…

The word salary evolved from salarium argentium, or “salt money”. Salt money was fees paid to Roman soldiers to buy the then precious commodity. In some instances, salt was indeed used as money.

In its earliest use, the phrase pin money did mean the money to buy pins, the primary fasteners for clothing before buttons and zippers were invented. But by the sixteenth century, the phrase came to mean the money used for incidentals.