A fortnight is a period of two weeks. It is commonly used in British English.
The word for walking back and forth is "pacing."
A pendulum swinging, a see-saw moving up and down, and a rocking chair swaying back and forth are examples of things that go back and forth.
A pendulum swings back and forth rapidly due to gravity and inertia.
The particles in a solid move back and forth in place.
"Oscillate" means to move back and forth in a regular rhythm.
If you are talking about a fortnight then, around two weeks. There is no such thing as a forth night unless you are talking about thursday.
2 weeks or 14 days.
Fourteen nights, a.k.a. two weeks
A three dog night is a very cold night in which you need all three of your dogs to keep you warm. Or you could always buy a forth if the it goes below zero.
Only at night.
There are 26 fortnights in a year, with each fortnight comprising 14 days.
According to Hesiod in his Theogony "From Chaos came forth Erebus and black Night Nyx.
The word is not "forth night" but "fortnight" which comes from the Middle English "forteenight" meaning a period of 14 days. It is more commonly used in British English than American.
the animals group is night animals specially bats
The Forth was created in 1995.
"Forth" is not a number.
one forth is one qauter eg. one forth of 100 is 25.