What is the meaning of Gauntlet?

Protective armor for the hands, formerly thrown down as a challenge to combat.

A long glove covering the wrist.

A rope on which hammocks or clothes are hung for drying.

An eruption of pellagra on the hands.

Two parallel rows of attackers who strike at a criminal as punishment.

A simultaneous attack from two or more sides.

Any challenging, difficult, or painful ordeal, often one performed for atonement or punishment.

Overlapping parallel rail tracks; either to allowing passage through a narrow opening in each direction without switching, or to allow vehicles of a larger gauge to pass through a station without hitting the platforms.

Source: wiktionary.org