One under par on a hole is called a "birdie".
It is called a double eagle or a hole in one.
A birdie is one stroke under par on a given hole.
Every hole has a par rating - usually 3, 4 or 5. One under means one less than this. So on a par 4 hole a score of 3 is one under par. This is called a birdie.
A birdie is a hole played one stroke under par.
A Three Under Par is either an Albatross or a Hole In One.
Birdie: one under par for that hole e.g. 3 on a par 4 Bogey: one over the par for that hole e.g. 5 on a par 4 eagle: two under the par for that hole e.g 3 on a par 5 or 2 on a par 4
For a round of golf- one under. For a given hole- a birdie.
Three under par on one hole of golf is an albatross or a double eagle.
One under par for a hole is one shot less than par, say you make a 3 on a par 4, this is a birdie. One under for a round is where you had a round which was one shot less than par, say you shot 71 on a par 72.For holes played, or for that round, or for the tournament, the player has taken one less shot to play those holes than par.
It means that you got 3 under par on a hole So got a 2 on a par 5 or a 1 on a par 4.
one under par is called a "birdy" 2 under par is called "eagle"