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Originally, a torch was a portable source of fire used as a source of light, usually a rod-shaped piece of wood with a rag soaked in pitch or some other flammable material wrapped around one end.

In modern British English, a torch is an electrical flashlight.

In construction usage, a torch is a hot flame, usually fueled by oxygen and acetylene, that is used to either cut or weld metals, particularly iron and steel. For example, blowtorch, cutting torch, or welding torch.

Torch is also the stage name of Frederick Hahn, a German rapper and hip hop pioneer with Haitian roots. He is a member of Advanced Chemistry.