A double eagle (or albatross) is 3 strokes below par. For example, if you get 3 strokes on a par 5, you would have a double eagle.
The rated strokes for a particular hole in golf is called ''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.
Par is the average. Used very often about golf strokes taken for a certain hole. A par 3 hole is a hole where the average number of strokes to complete is 3.
Four (4) same as usual one under par
It is when you get 2 strokes below par on 1 hole. For example 3 on a par 5 or 2 on a par 4
In golf, "par" is the expected number of strokes for a hole - or for the entire course (18 holes). This number will vary for each hole, depending on the perceived difficulty of doing it.
An Eagle in golf is lower than a birdie. A birdie is 1 stoke below par on the hole and an Eagle is 2 strokes below par For example, on a par four, an eagle is two strokes on a par three, an eagle is not used. it is just referred to as a hole in one!