nine iron
They come in different degrees. They are usually around 45º
A 3 iron is usually 21 degrees and and 4 iron 24 degrees, so a strong 4 iron. Depends on manufacturer really. And also remember the shafts on hybrids are slightly longer, perhaps by an inch which means the ball goes further.
A "sand Iron" is a golf club (iron) designed to hit a golf ball out of a sand trap or bunker.
a nibley can be a 7 - 9 iron.
A 5 Iron, or middle iron, is generally used for an average distance 170 yards for an average golfer.
back nine
A "sand wedge" is used in the sport of golf.
to replace a 3 iron or 4 iron
An iron is a type of golf club.
The clubs are lofted differently. Loft refers to the backward slant of the face of a golf club. The greater the loft, the higher the arc of the shot it produces and the shorter the distance. The three iron is designed for a distance of about 190 yards. (Actual distances vary depending upon the skill of the player.) A four iron is good for 180 yards, etc. So, the nine iron is good for shots of about 130 yards.
Golf is played in a golf course. A typical golf course has 18 holes, however, smaller golf courses have 9 holes as well. Championship level golf courses are known to have even 27 or 36 separate holes.