It is impossible to get a five under par.
A par is a certain ammount of strokes you hit the ball with in golf. If you hit under the ammount of par it is reffered to as an under par. Which is different depending on the difficulty.
A birdie is a golf hole played one under par.
Four (4) same as usual one under par
To get under par.
4 under par is known as a "Condor".
One under par for a given hole in golf.
An Albatross is 3 under par on a par 5.
Three under par on one hole of golf is an albatross or a double eagle.
In golf a birdie is one under par on a given hole. So a 2 on a par 3, 3 on a par 4 and 4 on a par 5.