iron rod; iron bar; iron club
Refers to a solid cylindrical piece of iron, often used in construction, fencing, or as a blunt weapon.
Several iron rods were lying at the construction site.
The culprit broke the window with an iron bar.
Specifically the gymnastics apparatus; also used for the event itself. Common in school sports and competitions.
We practiced pullovers on the horizontal bar in PE class.
He performed a beautiful routine on the horizontal bar.
The children were playing by hanging from the horizontal bar.
She became able to do a backward upstart on the horizontal bar.
He got hurt falling from the horizontal bar during practice.