Used after the name of a day to indicate that something will take place two weeks after that day
a period of fourteen consecutive days; "most major tennis tournaments last a fortnight"
The fortnight is a unit of time equal to fourteen days. The word derives from the Old English feorwertyne niht, meaning "fourteen nights".
A period of fourteen nights; two weeks
A period of time consisting of two weeks. It comes from the phrase “fourteen nights”. Amazingly, most Americans are unfamiliar with this word, even though it used to be much more common in American English.
n. A fortnight is a well-used word in the UK meaning two weeks. The word does exist in the US but is not in common use; I am told that using it there would have a similar response to using "a score" to represent twenty.
n. 1. Two weeks. This term is used quite commonly. The term has its origins in the phrase ``fourteen nights.'' Armed with this knowledge you will not be surprised to learn that sevnight is also used in English and means . . . (guess).